Learning math takes practice, lots of practice. Step 1. Differentiate w. You write down problems, solutions and notes to go back Read More.58, -17. Middle School Math Solutions - Equation Calculator. Step 1. Learn the basics, check your work, gain insight on different ways to solve problems. x2 + x − 8 x 2 + x - 8. x^{2}+2x-8=0. y = x2 − 2x − 8 y = x 2 - 2 x - 8. x^{2}-2x-8. To simplify your expression using the Simplify Calculator, type in your expression like 2 (5x+4)-3x. quadratic-equation-calculator. Factor out of . Quadratic equation { x } ^ { 2 } - 4 x - 5 = 0. Select a few x x values, and plug them into the equation to find the corresponding y y Click here:point_up_2:to get an answer to your question :writing_hand:factorize x2 2x 8. Try it now: 2x+3=15 @ x=6 Clickable Demo Try entering 2x+3=15 @ x=6 into the text box. Tap for more steps (x−2)(x+ 4) = 0 ( x - 2) ( x + 4) = 0 If any individual factor on the left side of the equation is equal to 0 0, the entire expression will be equal to 0 0. Factor 5 a2 x2 y3-25 ax7 y2 z. Step 2. Combined, they sold 30 items. Substitute the values a = 1 a = 1, b = −2 b = - 2, and c = −8 c = - 8 into the quadratic formula and solve for x x.2. Q5 are the factors of the polynomial x 2 + 2 x Solve Using the Quadratic Formula x^2-2x-8=0. Ask a question for free Get a free answer to a quick problem. Algebra Calculator - get free step-by-step solutions for your algebra math problems Factorise x 2 - 2 x - 8. Interval Notation: The perfect square rule is a technique used to expand expressions that are the sum or difference of two squares, such as (a + b)^2 or (a - b)^2. Solve for x x. x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0. Factor.4. Related Calculators. Tap for more steps Step 1. Tap for more steps y = (x− 1)2 −9 y = ( x - 1) 2 - 9. The vertex has x-co-ordinate halfway between the x-intercept, x = -1 if x = -1 , y = (-1)^2 + 2 (-1) - 8 = -9.8. Solve for x Calculator. Step 3. Get immediate feedback and guidance with step-by-step solutions and Wolfram Problem Generator. In this case, whose product is −8 - 8 and whose sum is −2 - 2. Draw the graph y = x2 −9 and hence solve the equation x2 −2x−8= 0. The factor common to each term is x. Tap for more steps Direction: Opens Up Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1 Directrix: y = −37 4 y = - 37 4 Select a few x x values, and plug them into the equation to find the corresponding y y values.1. Factor x x out of x2 −2x x 2 - 2 x.3. x2 + x−8 x 2 + x - 8.b b fo flah fo erauqs eht ot lauqe si taht eulav a dnif ,noitauqe eht fo edis tfel eht no erauqs laimonirt a etaerc oT 8 = x 2 + 2 x 8 = x2 + 2x 8=x2+2^x erauqS eht gnitelpmoC yb evloS arbeglA smelborP ralupoP : noitauqe eht fo sedis htob ot 1 ddA . Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1. −4,2 - 4, 2 Write the factored form using these integers. The equation is of the form ax2 + bx + c = 0 where: a = 1,b = 2,c = − 8. Step 3. (x+4)(x2 −2) ( x + 4) ( x 2 - 2) In this video we'll follow a clear set of steps for writing the factors for the equation x^2 - 2x - 8 = 0. Step 2. Therefor, the 2 real roots are: 2 and -4. The simplify calculator will then show you the steps to help you learn how to simplify your algebraic expression on your own. Step 3.5-in x 7. That is +. 2±√(−2)2 −4 ⋅(1⋅−8) 2⋅1 2 How to simplify your expression. 2 .9. Welcome to our new "Getting Started" math solutions series. Practice Makes Perfect. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. quadratic-equation-calculator. x= 87±12 2 I will let you finish this off Explanation: Possible factors of 15 are 1 and 15 or 3 and 5 Possible factors of 4 are 1 and 4 or 2 and 2 Let 3x2-2x-4 Final result : 3x2 - 2x - 4 Step by step solution : Step 1 :Equation at the end of step 1 : (3x2 - 2x) - 4 Step 2 :Trying to factor by splitting the middle term 2. To find a and b, set up a system to be solved. 4x-8=0 One solution was found : x = 2 Step by step solution : Step 1 :Pulling out like terms : 1. Add 8 to both side of the equation : x2-2x = 8. Simultaneous equation. Please check the expression entered or try another topic. x = ±√8 x = ± 8. Factor pairs of (c = -8) --> (-2, 4) (2, -4). We'll first write the skeleton form of the equatio 求解 x^2-2x-8=0 | Microsoft Math Solver. $\exponential { (x)} {2} - 2 x - 8 = 0 $. Just like running, it takes practice and dedication. 2x_{8}^{0} Subtract 1 from 1. x2 − 2x + 1 x 2 - 2 x + 1. See More … f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. On taking 'x' common from first two terms and 2 from next two terms we get. Just like numbers have factors (2×3=6), expressions have factors ((x+2)(x+3)=x^2+5x+6). quadratic-equation-calculator. 2x = - 4x + 2x. (b 2)2 = (−1)2 ( b 2) 2 = ( - 1) 2.0-ft. (x-4) (x+2) ≤ 0. Simplify the result. factor-calculator. Algebra.3. In the i) case , x ≥ 4 and x ≤ − 2, which is not possible. x = -4 ( x-2) = 0. If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .1. Related Symbolab blog posts. 2x_{8}^{1-1} The derivative of ax^{n} is nax^{n-1}. y=x^{2}-2x-8. In ii) case x ≤ 4 and x ≥ −2 is a feasible solution. Substitute 4 for x_{1} and -2 for x_{2}. Limits. 运用二次公式的步骤. Tap for more steps x = 6 x = 6. It shows you the solution, graph, detailed steps and explanations for each problem. High School Math Solutions - Quadratic Equations Calculator, Part 2.2 Solving x2-2x-8 = 0 by Completing The Square . We need to factories and find the factors of the given quadratic equation x 2 - 2 x - 8. x + 1 = ± 3. Set equal to and solve for . ac+bc=(a+b) c. Add and subtract 1: x2 +2x + 1 − 1 =. Substitute the values a = 1 a = 1, b = −2 b = - 2, and c = −5 c = - 5 into the quadratic formula and solve for x x. To create a trinomial square on the left side of the equation, find a value that is equal to the square of … Algebra Solve for x x^2-2x=8 x2 − 2x = 8 x 2 - 2 x = 8 Subtract 8 8 from both sides of the equation. Factor x^3+4x^2-2x-8. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Free equations calculator - solve linear, quadratic, polynomial, radical, exponential and logarithmic equations with all the steps. x^{2}-2x-8=\left(x-4\right)\left(x-\left(-2\right)\right) Factor the original expression using ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right). To find the opposite of 2x^{2}-8x+8, find the opposite of each term. Mathematics. Join / Login. x = 0 x = 0. The x x values should be selected around the vertex. Vertex is at (1,7) and vertex form of equation is y =(x-1)^2 +7 graph{x^2-2x+8 [-35. Use the quadratic formula to find the solutions. Simplify.1. x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0 Factor x2 − 2x−8 x 2 - 2 x - 8 using the AC method. Subtract 1 from both sides of the equation. Simplify and combine like terms. You can also see that the midpoint of r and s corresponds to the axis of symmetry of the parabola represented by the quadratic equation y=x^2+Bx+C. 4 \sin \theta \cos \theta = 2 \sin \theta. 求解. Write the factored form using these integers. For any term t except 0, t^{0}=1. An example with three indeterminates is x³ + 2xyz² − yz + 1. Standard VIII. for zero factor we will put y = 0 x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Show More; Description. Simplify 2x-8. x^{2}+2x=y+8 . The Discriminant is given by: Δ = b2 − 4 ⋅ a ⋅ c. x2 + 2x−8 = 0 x 2 + 2 x - 8 = 0.1. Add the term to each side of the equation. An example of a polynomial of a single indeterminate x is x² − 4x + 7. This step makes the left hand side of the equation a perfect square. To simplify your expression using the Simplify Calculator, type in your expression like 2 (5x+4)-3x. Step 2. x→−3lim x2 + 2x − 3x2 − 9.2. Product of the zeroes = `(` Also product of the zeroes = … y=x^{2}+2x-8. 0 = x (x+4) - 2(x + 4) 0 = (x + 4) (x - 2) So zero factors will be . Most questions answered within 4 hours. = (2)2 − (4 ⋅ 1 ⋅ ( −8)) = 4 + 32 = 36. Use the slope-intercept form to find the slope and y-intercept. Tap for more steps x(x−2) = 0 x ( x - 2) = 0. Algebra Calculator - get free step-by-step solutions for your algebra math problems Therefore the zeroes of the polynomial x 2 - 2x - 8 are {4, 2} Relationship between the zeroes and the coefficients of the polynomial. 0 = x² + 2x - 8. en. Find the Roots (Zeros) f (x)=x^2+2x-8. Solve by Completing the Square x^2+2x=8. For this inequality to be true following two possibilities can exist: i) x −4 ≥ 0 and x +2 ≤ 0 (ii) x − 4 ≤ 0 and x + 2 ≥ 0. Add 1 to both sides of the equation : On the right hand side we have : 8 + 1 or, (8/1)+ (1/1) First type the equation 2x+3=15. Combine 4x and 8x to get 12x.3.i 0 = 8 - x2 + 2^x os , 0 = y ,stpecretni-x rof 8 = y e. y = x2 − 2x − 8 y = x 2 - 2 x - 8. en. The Factoring Calculator transforms complex expressions into a product of simpler factors. High School Math Solutions - Quadratic Equations Calculator, Part 3. f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. Is there a step by step calculator for physics? Steps Using the Quadratic Formula Steps for Completing the Square View solution steps Graph Graph Both Sides in 2D Graph in 2D Quiz Polynomial 5 problems similar to: Similar Problems from Web Search Share Examples Quadratic equation Trigonometry Linear equation Arithmetic Matrix Factor x^2+2x-8 Pre Calculus Calculus Statistics Go Examples Related Symbolab blog posts Middle School Math Solutions - Polynomials Calculator, Factoring Quadratics Just like numbers have factors (2×3=6), expressions have factors ( (x+2) (x+3)=x^2+5x+6). Precalculus. Related Symbolab blog posts. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. Solve your math problems using our free math solver with step-by-step solutions. Directrix: y = −37 4 y = - 37 4. Step 2. Related Symbolab blog posts. x2 − 2x = 8 x 2 - 2 x = 8. After you enter the expression, Algebra Calculator will plug x=6 in for the equation 2x+3=15: 2(6)+3 = 15. View Solution. Solve for x x^2=8. x 2 + 6 x + 8 can be factorized as (x + 2) (x + 4) View Solution. Set x2 +2x− 8 x 2 + 2 x - 8 equal to 0 0. Algebra. Copied to clipboard. We can see this since #x^2-2x+1# is a perfect square, so it touches the x-axis at a single root. More Examples Factor 2x^2-8. Algebra Examples. Replace the variable with in the expression.-1,8 -2,4 . 通过分组进行因式分解的步骤. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework What is the vertex form of #y=x^2-2x+8#? How do I use the vertex formula to determine the vertex of the graph of the function and write it in standard form for f(x)=x^2-10x? Algebra. Next, let's find the x-intercepts, which are the zeroes of the equation. 1: 2: 3: 4: 5: 6: 7: 8: 9: 0. x2 − 2⋅x⋅1+12 x 2 - 2 ⋅ x ⋅ 1 + 1 2. x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0 Factor x2 − 2x−8 x 2 - 2 x - 8 using the AC … Solve an equation, inequality or a system. 2 View solution steps Evaluate. Use the vertex form, y = a(x−h)2 +k y = a ( x - h) 2 + k, to determine the values of a a, h h, and k k.t. Difference of Squares: a2 - b2 = (a + b)(a - b) a 2 - b 2 = ( a + b) ( a - b) Step 2: Solution We need to factories and find the factors of the given quadratic equation x 2 - 2 x - 8 Let us assume that the equation is in the form a x 2 + b x + c We know that if α and β are the two root of the quadratic equation a x 2 + b x + c, then α + β = - b a and α β = c a. The final answer is the combination of both solutions. To find a and b, set up a system to be solved. Solve quadratic equations step-by-step. Substitute 2 for x_{1} and -4 for x_{2}. Free math problem solver answers your algebra homework questions with step-by-step explanations.1. Step 2. Tap for more steps x-intercept (s): (4,0),(−2,0) ( 4, 0), ( - 2, 0) Find the y-intercepts. Find the properties of the given parabola. Arithmetic. Polynomials are often written in the form: a₀ + a₁x + a₂x² + a₃x³ + + aₙxⁿ, where the a's are coefficients and x is the variable. Find the x and y Intercepts f (x)=x^2-2x-8. Step 3. Step 2.1. Free Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-step To solve the equation, factor x^{2}-2x-8 using formula x^{2}+\left(a+b\right)x+ab=\left(x+a\right)\left(x+b\right). y-intercept: (0,−8) ( 0, - 8) Any line can be graphed using two points. Algebra. A polynomial is a mathematical expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, and multiplication. f (x) = x2 + 2x − 8 f ( x) = x 2 + 2 x - 8. Step 3. Next, use the negative value of the to find the second solution. Solve your math problems using our free math solver with step-by-step solutions. Tap for more steps x = ±2√2 x = ± 2 2. x = 2. Algebra. Show more. Directrix: y = −27 4 y = - 27 4. Multiply x x by x x by adding the exponents. The domain of the expression is all real numbers except where the expression is undefined. Find the properties of the given parabola. If you want Read More. Solve quadratic equations step-by-step. Factoring is the process Read More Save to Notebook! Sign in Arithmetic Matrix Simultaneous equation Differentiation Integration Limits Solve your math problems using our free math solver with step-by-step solutions. Middle School Math Solutions - Polynomials Calculator, Factoring Quadratics. Just like running, it takes practice and dedication. The domain of the expression is all real numbers except where the expression is undefined.yfilpmiS . Example 2. Polynomials are often written in the form: a₀ + a₁x + a₂x² + a₃x³ + + aₙxⁿ, where the a's are coefficients and x is the variable. x2+2x+2 Final result : x2 + 2x + 2 Step by step solution : Step 1 :Trying to factor by splitting the middle term 1. en. f (x) = x2 + 2x − 8 f ( x) = x 2 + 2 x - 8. Polynomial. Linear equation. x 2 + 6 x + 8 can be factorized as (x + 2) (x + 4) View Solution. Free math problem solver answers your algebra homework questions with step-by-step explanations.10. Use app Login. 2-in x 8-in x 10-ft Southern Yellow Pine Kiln-dried Lumber. We can Split the Middle Term of this expression to factorise it. This last sum is (-2 = -b). Tap for more steps x2 − 6x−16 x 2 - 6 x - 16. \left(x-2\right)\left(x+4\right) Factor out common term x-2 by using distributive property. The solution is Algebra. en. If it is known the way to solve an equation of 2° degree, here there is the second way to factor it: We can imagine that this polynomial "becomes" an equation: 3x^2-2x-8=0, we can calculate the quantity Delta=b^2-4ac=4+96=100, and than we have to use this formula: x_(1,2)=(-b+ Solve for x 2x-4=8.78]} [Ans] Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. For chemistry, calculus, algebra, trigonometry, equation solving, basic math and more. equation-calculator. The equation calculator allows you to take a simple or complex equation and solve by best method possible. Integration.1 Pull out like factors : 4x - 8 = 4 • (x - 2) Equation at the end To factor x^2 + 2x - 8 follow these steps.e - 2x. Use the quadratic formula to find the solutions. 2x − 4 = 8 2 x - 4 = 8. Practice Makes Perfect. Set x2 −2x− 8 x 2 - 2 x - 8 equal to 0 0. If you want Read More.

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Solve. Factor x^2+x-8. 0 = x² + 4x - 2x - 8. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Find My Store. Factor out of . Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Find the Vertex f (x)=x^2+2x-8.1. Factor x^2-2x+1. Two numbers r and s sum up to 3 exactly when the average of the two numbers is \frac{1}{2}*3 = \frac{3}{2}. Related Symbolab blog posts. 1,-8 2,-4 . Solution. Rewrite the polynomial. In this case, whose … x^{2}-2x-8. x^{2}+2x-8=\left(x-2\right)\left(x-\left(-4\right)\right) Factor the original expression using ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right). Graph y=x^2-2x-2. Get all the terms with the wanted variable on one side of the equation and all the other terms on the other side. Learning math takes practice, lots of practice. and. Substitute the values , , and into the quadratic formula and solve for .2. Tap for more steps Answer: x = 2 and ( -4) Step-by-step explanation: We have to find the zero factors of the given equation . We can find the x-coordinate by using x=-b/ (2a): x=-2/ (2*1)=-2/2=1 The y-coordinate can be found by plugging the x-value back into the equation: (1)^2-2 (1)-8 = 1-2-8 = 9 The vertex is (1,9). Tap for more steps Step 1. Multiply 8 8 by 2 2. Related Symbolab blog posts. Related Symbolab blog posts. 3. Combine -4x^{2} and -2x^{2} to get -6x^{2}. Swap sides so that all variable terms are on the left hand side. −2x −2 = 8 −2 - 2 x - 2 = 8 - 2. x=0 x=-2 . Factor x x out of x2 x 2.1 x 3 +x 2-2x-8 is not a perfect cube . Simultaneous equation. Step 1. 一步步求解线性方程,二次方程,四次方程,绝对值方程和根式方程. Tap for more steps y = (x+ 1)2 −9 y = ( x + 1) 2 - 9. y = x2 − 2x − 8 y = x 2 - 2 x - 8. Tap for more steps x = 2 and ( -4) Step-by-step explanation: We have to find the zero factors of the given equation . In this case, there is no real number that makes the expression undefined. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. Tap for more steps Step 1.2. 1,-8 2,-4 . The minimum of a quadratic function occurs at x = − b 2a x = - b 2 a. Tap for more steps Step 1. x3 + 4x2 − 2x − 8 x 3 + 4 x 2 - 2 x - 8. Tap for more steps Step 1. 2x−8 2 x - 8. zs. Tap for more steps y = (x+ 1)2 −9 y = ( x + 1) 2 - 9. If any individual factor on the left side of the equation is equal to 0 0, the entire expression will be equal to 0 0. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. 求解 x 的值.4. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. Calculus. Rewrite as . Get Step by Step Now. Find the Vertex f (x)=x^2+2x-8. x + 4 = 0. To solve the equation, factor x^{2}+2x-8 using formula x^{2}+\left(a+b\right)x+ab=\left(x+a\right)\left(x+b\right). You should test that when x >1 (note the strict inequality here) the derivative is positive. The value at is . en. Simplify the result.2. To solve the equation, factor x^{2}-2x-8 using formula x^{2}+\left(a+b\right)x+ab=\left(x+a\right)\left(x+b\right). Factoring is the process Read More. Tap for more steps Step 1. \frac{x^{12}}{x^{-2}} (2x)^{2} x^{2}\cdot x^{3} Show More; Description. List all such … factor\:x^6-2x^4-x^2+2 ; factor\:2x^5+x^4-2x-1 ; Show More; Description. 2 (-2x-8)-6x+? = -2x + 13. Step 2: Click the blue arrow to submit and see the result! The solve for x calculator allows you to enter your problem and solve the equation to see the f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. Step 7. en. Since a+b is positive, the positive number has greater absolute value than the negative. Algebra. The value at is . Divide each term in 2x = 12 2 x = 12 by 2 2 and simplify. Over the next few weeks, we'll be showing how Symbolab So our polynomial becomes: 3x^2-6x+4x-8=3x(x-2)+4(x-2)=(x-2)(3x+4). The solutions are found using the formula. Step 3. x^{2}+2x-8=0 . Frequently Asked Questions (FAQ) To factor a trinomial x^2+bx+c find two numbers u, v that multiply to give c and add to b. Related Symbolab blog posts.1. To find a and b, set up a system to be solved. (x−4)(x+ 2) ( x - 4) ( x + 2) x^{2}-2x-8. Related Symbolab blog posts.25-in x 16. Tap for more steps x = 2,−4 x = 2, - 4.8.00/month. Tap for more steps x⋅x+x⋅ −8+2x+2⋅−8 x ⋅ x + x ⋅ - 8 + 2 x + 2 ⋅ - 8. factor\:x^6-2x^4-x^2+2; factor\:2x^5+x^4-2x-1; Show More; Description. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Show More; Description. The sign to the right of the x of the second factor is the product of the sign of the coefficent of x (this is Simplify (x+2) (x-8) (x + 2) (x − 8) ( x + 2) ( x - 8) Expand (x+2)(x− 8) ( x + 2) ( x - 8) using the FOIL Method. Explanation: To find the factors of x 2 - 2x - 8 we need to split the middle term i. 2x_{8} Quiz. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. 15x2 − 2x − 8 15 x 2 - 2 x - 8. Wood Species: Southern yellow pine. Nothing further can be done with this topic. Free math problem solver answers your algebra Factorise the expression: x2 −2x − 8 ≤ 0. Solve for x x. Let's factor the polynomial and find them: x^2-2x-8=0 (x-4) (x+2)=0 x-4=0 x=4 Explanation: x2 +2x − 8 = 0. Add 8 to both sides. 5 problems similar to: 2x8= Share. Add 8 8 to both sides of the equation.1 Factoring Simplify 2x (x+8) 2x(x + 8) 2 x ( x + 8) Apply the distributive property. Rewrite as . The unknowing Read More. Take the specified root of both sides of the equation to eliminate the exponent on the left side.1. Use the vertex form, y = a(x−h)2 +k y = a ( x - h) 2 + k, to determine the values of a a, h h, and k k. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. Factor out the greatest common factor from each group. Q5 are the factors of the polynomial x 2 + 2 x Solve Using the Quadratic Formula x^2-2x-8=0. Simplify . Find a pair of integers whose product is c c and whose sum is b b. Step 6. Find the missing number so that the equation has infinitely many solutions. 2x⋅x+2x⋅8 2 x ⋅ x + 2 x ⋅ 8. Dressing: S4S. 2x = 2⋅x ⋅1 2 x = 2 ⋅ x ⋅ 1. Isolate the variable, and solve for the variable by undoing any arithmetic In mathematics, a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and positive-integer powers of variables. x2 − 2x − 8 = 0 x 2 - 2 x - 8 = 0. Check that the middle term is two times the product of the numbers being squared in the first term and third term. Enter a problem Cooking Calculators.1 Factoring x2+2x-8 The first term is, x2 its coefficient is 3x2+2x-8 Final result : (3x - 4) • (x + 2) Step by step solution : Step 1 :Equation at the end of step 1 : (3x2 + 2x) - 8 Step 2 :Trying to factor by How do you solve 3x − 8 = 2 ? x= 310 Explanation: Add 8 on both sides, so that it is 3x=10. x^{2}-x-2. Solve your math problems using our free math solver with step-by-step solutions.3. en. h = 1 h = 1. Tap for more steps Direction: Opens Up Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1 Directrix: y = −37 … Algebra Factor x^2-2x-8 x2 − 2x − 8 x 2 - 2 x - 8 Consider the form x2 + bx+c x 2 + b x + c. Solve by Factoring x^2-2x-2=0.3. Use the quadratic formula to find the solutions. Limits. Middle School Math Solutions - Polynomials Calculator, Factoring Quadratics. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. 3. en. Pull terms out from under the radical, assuming Solve by Factoring x^2+2x-8=0. Now the clever bit: Take the coefficient of x , which is 2 , divide by two, giving 1 , and finally square it giving 1. Tap for more steps Step 3. 使用配方法的步骤. y = x2 − 2x − 8 y = x 2 - 2 x - 8. Algebra. Related Symbolab blog posts. To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of b b. The simplify calculator will then show you the steps to help you learn how to simplify your algebraic expression on your own.11. x+1=1 x+1=-1 . The result Algebra. You can also see that the midpoint of r and s corresponds to the axis of symmetry of the parabola represented by the quadratic equation y=x^2+Bx+C. Enter a problem Cooking Calculators. Use the quadratic formula to find the solutions. Practice, practice, practice. Change the to . Factor x x out of x⋅x+x⋅−2 x ⋅ x + x ⋅ - 2. Factor 2 x2+3 xy. A store sold 4 times more chocolate bars than Skittles. But what Differentiation. Tap for more steps x2(x+ 4)−2(x+4) x 2 ( x + 4) - 2 ( x + 4) Factor the polynomial by factoring out the greatest common factor, x+4 x + 4. Step 2. 2x−8 2 x - 8. Trying to factor by pulling out : 1.1 ± = 2√ ± = x : dnuof erew snoitulos owT 4-=2x2- 4−x9 = 2x2 :noitanalpxE :noitatoN lavretnI . Find the Domain and Range f (x)=x^2-2x-8. Tap for more steps Slope: 2 2. We know that if α and β are the two root of the quadratic equation a x 2 + b x + c, then α + β = - b a and α β = c a.10.2 Solving x2-2x-8 = 0 by Completing The Square . Related Symbolab blog posts. However, we can find its imaginary roots like this: #x^2-2x+2# The inverse of f (x)= x2 −2x−8 is (XXX)f (x)= 1 ± x+9 which is not a For monotonicity (increasing at least) we need the derivative positive everywhere. My Notebook, the Symbolab way. Step 5. Get help on the web or with our math app. Then add the square of 1 to both sides of the equation. Type in any equation to get the solution, steps … Find the properties of the given parabola. Just like numbers have factors (2×3=6), expressions have factors ((x+2)(x+3)=x^2+5x+6). Graph y=2x-8. Guides. Rewrite the equation in vertex form. Here's is the explanation to factorise x 2 - 2x - 8. Enter a problem Cooking Calculators. Since a+b is negative, the negative number has greater absolute value than the positive. x^{2}+2x+1^{2}=y+8+1^{2} Divide 2, the coefficient of the x term, by 2 to get 1. x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Solve quadratic equations step-by-step. Online math solver with free step by step solutions to algebra, calculus, and other math problems. Differentiation. Step 2. Vertex: (1,−9) ( 1, - 9) Focus: (1,−35 4) ( 1, - 35 4) Axis of Symmetry: x = 1 x = 1. For math, science, nutrition, history In this case x-intercept doesn't exist since equation $-x^2+2x-2=0$ does not has the solutions (use quadratic equation solver to check ). For any term t, t\times 1=t and 1t=t. Tap for more steps 15x2 + 10x−12x−8 15 x 2 + 10 x - 12 x - 8. for pricing and availability.x 61 + 2 x 2 x61 + 2x2 . Multiple Options Available. x^{2}-2x-8=0. In such case the quadratic equation can be expressed as x - α x - β Symbolab is the best step by step calculator for a wide range of math problems, from basic arithmetic to advanced calculus and linear algebra. 1: 2: 3: 4: 5: 6: 7: 8: 9: 0. To create a trinomial square on the left side of the equation, find a value that is equal to the square of half of . exponents-calculator (2x)^{2} en. Select a few x x values, and plug them into the equation to find the corresponding y y values. Simplify 2x-8. Algebra. Example: 2x-1=y,2y+3=x. Move all terms not containing x x to the right side of the equation.Linear equation Arithmetic Matrix Simultaneous equation Differentiation Integration Limits Solve your math problems using our free math solver with step-by-step solutions. Step 2. For a polynomial of the form ax2 +bx+ c a x 2 + b x + c, rewrite the middle term as a sum of two terms whose product is a⋅c = 15⋅−8 = −120 a ⋅ c = 15 ⋅ - 8 = - 120 and whose sum is b = −2 b = - 2. High School Math Solutions - Quadratic Equations Calculator, Part 2. The solutions for the equation are color (blue) (x=2 , color (blue) (x=-4 x^2 + 2x - 8 = 0 We can Split the Middle Term of this x2 − 2x − 8 > 0 x 2 - 2 x - 8 > 0. whats 22 X 22 and whats 44 X 44 ? Which model shows the correct factorization of x^2 + 2x Two numbers r and s sum up to -2 exactly when the average of the two numbers is \frac{1}{2}*-2 = -1. Step 5. x^{3}-4x^{2}+4x-2x^{2}+8x-8 . Select a few x x values, and plug them into the equation to find the corresponding y y Click here:point_up_2:to get an answer to your question :writing_hand:factorize x2 2x 8. Middle School Math Solutions – Polynomials Calculator, Factoring Quadratics. Guides. Step 1. Drying Method: Kiln-dried. Get all the terms with the wanted variable on one side of the equation and all the other terms on the other side. Divide each term in −2x = 8 - 2 x = 8 by −2 - 2. Isolate the variable, and solve for the variable by undoing any arithmetic Graph y=x^2-2x-2. Sum of the zeroes = - `(` Also sum of the zeroes of the polynomial = 4 - 2 = 2. This is not the case. x2 − 2x − 8 = 0 x 2 - 2 x - 8 = 0. Step 5. To solve the equation for different variables step-by-step clear any fractions by multiplying both sides of the equation by the LCM of the denominators.2 Factoring: x 3 +x 2-2x-8 Thoughtfully split the expression at hand into groups, each group having two terms : Group 1: -2x-8 Group 2: x 3 +x 2 Pull out from each group separately : Answer link. Solving quadratics by factorizing (link to previous post) usually works just fine. Mathematics. Directrix: y = −37 4 y = - 37 4. en. Step 1. Math can be an intimidating subject. Nothing further can be done with this topic. 1. The calculator prints "True" to let you know that the answer is right. Vertex form of equation is y =(x-1)^2 +7 y=x^2-2x+8 or y=(x^2-2x+1)-1+8 or y=(x-1)^2 +7 Comparing with vertex form of equation f(x) = a(x-h)^2+k ; (h,k) being vertex we find here h=1 , k=7, a=1 :.5.1. Join / Login. Factoring is the process Read More.r. y = (x− 1)2 −9 y = ( x - 1) 2 - 9. Let us assume that the equation is in the form a x 2 + b x + c. Thus, 2 x2+3 xy=x (2 x+3 y) Notice that we can always check the factorization by multiplying the factors together and comparing the result with the original polynomial. Algebra Factor x^2-2x-8 x2 − 2x − 8 x 2 - 2 x - 8 Consider the form x2 + bx+c x 2 + b x + c. Set x x equal to 0 0. Matrix. factor x^{2}+2x-8. (x +1)2 = 9. x^{2}-2x=8. View Solution. Practice Makes Perfect. Get step-by-step answers and hints for your math homework problems. x−2 = 0 x - 2 = 0. You write down problems, solutions and notes to go back Read More. Type in any equation to get the solution, steps and graph Find the properties of the given parabola. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. The complete solution is the result of both the positive and negative portions of the solution. x2 = 8 x 2 = 8. Solve by Factoring x^2-2x=0.

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Integration. x2 + 2x+(1)2 = 8 +(1)2 x 2 + 2 x + ( 1) 2 = 8 + ( 1) 2 Algebra Solve for x x^2-2x=8 x2 − 2x = 8 x 2 - 2 x = 8 Subtract 8 8 from both sides of the equation. Related Symbolab blog posts. y = 2x − 8 y = 2 x - 8. High School Math Solutions – Quadratic Equations Calculator, Part 3. It is … x^{2}+2x-8=y .4. Popular Problems. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Rewrite the equation in vertex form. Rewrite the equation in vertex form. Please check the expression entered or try another topic. Product of the zeroes = `(` Also product of the zeroes = 4 x -2 = -8. Rewrite x^{2}+2x-8 as \left(x^{2}-2x\right)+\left(4x-8\right). Welcome to our new "Getting Started" math solutions series.9. Simplify the right side. x^{3}-6x^{2}+4x+8x-8 . Simplify the left side. Middle School Math Solutions - Equation Calculator. Enter a problem Cooking Calculators. Steps Using the Quadratic Formula Steps for Completing the Square Steps Using Direct Factoring Method View solution steps Graph Graph Both Sides in 2D Graph in 2D Quiz Quadratic Equation x2−2x−8 = 0 Videos Finding zeros of polynomials (1 of 2) Khan Academy Completing solutions to 2-variable equations Khan Academy Limits by factoring Khan Academy Factoring Calculator Full pad Examples Frequently Asked Questions (FAQ) What is the sum of cubes formula? The sum of cubes formula is a³ + b³ = (a+b) (a² - ab + b²) What is the difference of squares formula? The difference of squares formula is a² - b² = (a+b) (a-b) What is the difference of cubes formula? To solve the equation for different variables step-by-step clear any fractions by multiplying both sides of the equation by the LCM of the denominators. Tap for more steps Direction: Opens Up. x^{3}-6x^{2}+12x-8 . Related Symbolab blog posts. f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. x^{2}-2x=8. Factorisation by Common Factors. Example: 2x-1=y,2y+3=x. Enter a problem Cooking Calculators. y=x^{2}+2x-8. The rule states that the square of the sum (or difference) of two terms is equal to the sum (or difference) of the squares of the terms plus twice the product of the terms.3. Tap for more steps (x−1)2 −9 ( x - 1) 2 - 9. Find the Vertex Form y=x^2-2x-8. After trying out a few numbers we get N 1 = −4 and N 2 = 2. Tap for more steps (x−4)(x+ 2) = 0 ( x - 4) ( x + 2) = 0 Algebra Solve by Factoring x^2+2x-8=0 x2 + 2x − 8 = 0 x 2 + 2 x - 8 = 0 Factor x2 + 2x−8 x 2 + 2 x - 8 using the AC method. Tap for more steps (x−4)(x+ 2) = 0 ( x - 4) ( x + 2) = 0. GCD of x^4+2x^3-9x^2+46x-16 with x^4-8x^3+25x^2-46x+16; quotient of x^3-8x^2+17x-6 with x-3; remainder of x^3-2x^2+5x-7 divided by x-3; roots of x^2-3x+2; View more examples; Access instant learning tools. Limits. Tap for more steps x = 4,−2 x = 4, - 2. Then add the square of 1 to both sides of the equation. Related Symbolab blog posts. Learning math takes practice, lots of practice. If you want Read More. Step 3. Rewrite 1 1 as 12 1 2. dxd (x − 5)(3x2 − 2) Integration. Since ab is negative, a and b have the opposite signs. Take −8 to the right: x2 +2x = 8. en. x_8. Then type x=6. Middle School Math Solutions – Polynomials Calculator, Factoring Quadratics. 1) Write to factors, with x as the first term, this way: (x ) (x ) 2) The sign to the right of the x in the first factor is the same sign of the coeficient of x in the polynomial. vertex is (-1;-9), y-intercept is (0;-8), x-intercepts are (2;0) and (-4;0) y- intercept is when x = 0, i. Find the Roots (Zeros) y=x^2-2x-8.1 Factoring x2+2x+2 The first term is, x2 its coefficient is 1 . Factor algebraic expressions step-by-step. Type in any equation to get the solution, steps and graph Solve by Completing the Square x^2+2x=8. Multiply by . Tap for more steps 2x = 12 2 x = 12. Since a+b is negative, the negative number has greater absolute value than the positive. Set y y equal to the new right side. Find the x-intercepts. y = x² + 2x - 8.54, 35. Solve. Since ab is negative, a and b have the opposite signs. en. Step 1: Enter the Equation you want to solve into the editor.1. Next divide by 3 on both sides to get x= 310.11. Example 1. The How do you list all possible roots and find all factors of 3x2 + 2x + 2 ? Solve for x -2x=8. My Notebook, the Symbolab way. Tap for Factor x^{2}+2x-8. On the last post we covered completing the square (see link). Precalculus. In this case, there is no real number that makes the expression undefined. Related Symbolab blog posts.78, 17. Root square both sides: x + 1 = ± √9.3. Solve. Copy. Tap for more steps x = 8 −2 x = 8 - 2. Then type the @ symbol. Free equations calculator - solve linear, quadratic, polynomial, radical, exponential and logarithmic equations with all the steps. Multiply by . Replace the variable with in the expression. Add 8 to both side of the equation : x2-2x = 8. Simplify exponential expressions using algebraic rules step-by-step. y = −x2 + 2x − 8 y = - x 2 + 2 x - 8., < > ≤: ≥ ^ √: ⬅: : F _ ÷ | (* / ⌫ A: ↻: x: y = +-G (Simplify Example), 2x^2+2y @ x=5, y=3 (Evaluate Example) y=x^2+1 (Graph Example), 4x+2=2(x+6) (Solve Example) Algebra Calculator is a calculator that gives step-by-step help on algebra problems. The final answer is . In this technique, if we have to factorise an expression like ax2 + bx +c, we need to think of 2 numbers such that: N 1 ⋅ N 2 = a ⋅ c = 1 ⋅ ( − 8) = − 8. It is pretty GCD of x^4+2x^3-9x^2+46x-16 with x^4-8x^3+25x^2-46x+16; quotient of x^3-8x^2+17x-6 with x-3; remainder of x^3-2x^2+5x-7 divided by x-3; roots of x^2-3x+2; View more examples; Access instant learning tools. In such case the quadratic Therefore the zeroes of the polynomial x 2 - 2x - 8 are {4, 2} Relationship between the zeroes and the coefficients of the polynomial. Use the vertex form, y = a(x−h)2 +k y = a ( x - h) 2 + k, to determine the values of a a, h h, and k k. On the last post we covered completing the square (see link). Enter a problem Cooking Calculators. x\left(x-2\right)+4\left(x-2\right) Factor out x in the first and 4 in the second group. Explanation: Solve y = x2 +2x − 8. en.2. Find 2 real roots knowing sum (-b = -2) and product (c = -8). Steps Using the Quadratic Formula Steps Using Direct Factoring Method View solution steps Evaluate (x − 4) (x + 2) Graph Quiz Polynomial x2−2x−8 Videos Finding zeros of polynomials (1 of 2) Khan Academy Completing solutions to 2-variable equations Khan Academy Limits by factoring Khan Academy Exponent properties with quotients Khan Academy Free equations calculator - solve linear, quadratic, polynomial, radical, exponential and logarithmic equations with all the steps. Rewrite the equation in vertex form. Vertex: (1,−7) ( 1, - 7) Focus: (1,−29 4) ( 1, - 29 4) Axis of Symmetry: x = 1 x = 1. Factor out of .2. Just like running, it takes practice and dedication. The final answer is . Solve Quadratic Equation by Completing The Square. Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. −2x = 8 - 2 x = 8. f (x) = x2 + 2x − 8 f ( x) = x 2 + 2 x - 8. en. Substitute the values , , and into the quadratic formula and solve for . 2±√(−2)2 −4 ⋅(1⋅−5) 2⋅1 2 ± Algebra. a = 1 a = 1. 2x − 8 2 x - 8. Use app Login. Algebra. Step 5. Step 1. Tap for more steps x2 −2x − 8. Rewrite the trinomial as the product of two binomials (x-u)(x-v) Precalculus. Therefore, x 2 - 2x - 8 can be written as x 2 - 4x + 2x - 8. Step 2. Solve by Factoring x^2-2x-5=0. Subtract from . Our math solver supports basic math, pre-algebra, algebra, trigonometry, calculus and more. f (x) = x2 − 2x − 8 f ( x) = x 2 - 2 x - 8. This step makes the left hand side of the equation a perfect square., < > ≤: ≥ ^ √: ⬅: : F _ ÷ | (* / ⌫ A: ↻: x: y = +-G What do you want to calculate? Calculate it! Examples: 1+2 , 1/3+1/4 , 2^3 * 2^2 (x+1) (x+2) (Simplify Example), 2x^2+2y @ x=5, y=3 (Evaluate Example) y=x^2+1 (Graph Example), 4x+2=2 (x+6) (Solve Example) Algebra Calculator is a calculator that gives step-by-step help on algebra problems. f min f min x = ax2 + bx+c x = a x 2 + b x + c occurs at x = − b 2a x = - b 2 a.1. 5x-6=3x-8; x^2-x-6=0; x^4-5x^2+4=0 \sqrt{x-1}-x=-7 \left|3x+1\right|=4 \log _2(x+1)=\log _3(27) 3^x=9^{x+5} 显示更多; 描述.3. Since both terms are perfect squares, factor using the difference of squares formula, where and . Select two x x values, and plug them into the equation to find the corresponding y y values. Find the Vertex y=x^2-2x-8. Related Symbolab blog posts. Algebra. Each new topic we learn has symbols and problems we have never seen. Rewrite the equation in vertex form. x2 − 2x−8 = 0 x 2 - 2 x - 8 = 0. Find the x and y Intercepts y=x^2-2x-8. Simplify. 查看解决方案步骤. So, in this case we will plot the graph using only two points. Trigonometry. Starting at $5. x^{2}+2x=y+8 .)a 2 b - ( f )a2 b −( f si noitcnuf eht fo eulav muminim eht ,evitisop si a a fI .e (x - 2) (x + 4) = 0 thus x = 2 or x = - 4. Sum of the zeroes = - `(` Also sum of the zeroes of the polynomial = 4 - 2 = 2. 2x^{2} en. 因式分解的步骤. Swap sides so that all variable terms are on the left hand side. Related Symbolab blog posts. x^{2}-2x-8. for zero factor we will put y = 0. It can factor expressions with polynomials involving any number of vaiables as well as more complex functions. Find the properties of the given parabola. −b±√b2 −4(ac) 2a - b ± b 2 - 4 ( a c) 2 a. Complete the square for x2 −2x−8 x 2 - 2 x - 8. Find the properties of the given parabola. Now the clever bit: Take the coefficient of x , which is 2 , divide by two, giving 1 , and finally square it giving 1. A polynomial is a mathematical expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, and multiplication. 2x − 8 2 x - 8. Find the Domain and Range y=x^2-2x-8. quadratic-equation-calculator. Get immediate feedback and guidance with step-by-step solutions and Wolfram Problem Generator. Step 3. x2 +2x + 1 = 8 + 1. Tap for more steps y-intercept (s): (0,−8) ( 0, - 8) List the intersections. If any individual factor on the left side of the equation is equal to 0 0, the entire expression will be equal Factor 15x^2-2x-8.slanoisseforp & stneduts fo snoillim yb no deiler ,esabegdelwonk & ygolonhcet hguorhtkaerb s'marfloW gnisu srewsna etupmoC sriap regetni hcus lla tsiL . x2 − 2x = 0 x 2 - 2 x = 0. Cooking Measurement Converter Cooking Ingredient Converter Cake Pan Converter See more. −b±√b2 −4(ac) 2a - b ± b 2 - 4 ( a c) 2 a. Step 5. Find the properties of the given parabola. Convert the inequality to an equation. N 1 + N 2 = b = − 2. Tap for more steps 2x2 + 2x⋅8 2 x 2 + 2 x ⋅ 8. Since ab is negative, a and b have the opposite signs. Find the Maximum/Minimum Value f (x)=x^2-2x-8. Draw the graph y = x2 −9 and hence solve the equation x2 −2x−8= 0. x2+2x-8 Final result : (x + 4) • (x - 2) Step by step solution : Step 1 :Trying to factor by splitting the middle term 1. x2 − 2x+12 x 2 - 2 x + 1 2. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics 8. Step 1. x^{2}+2x+1^{2}=y+8+1^{2} Divide 2, the coefficient of the x term, by 2 to get 1. Step 2. Step 2. Search our database of more than 200 calculators.. Solve an equation, inequality or a system. Adding 1 to this produces #x^2-2x+2#, and raises the graph of #y = x^2-2x+1# one upwards, meaning it no longer touches the x-axis, so it has no real roots. Factor x x out of −2x - 2 x. \sqrt{\left(x+1\right)^{2}}=\sqrt{1} Take the square root of both sides of the equation. Solve quadratic equations step-by-step. Actual Dimensions: 1. Step 3. Differentiation. Matrix. (b 2)2 = (1)2 ( b 2) 2 = ( 1) 2 Add the term to each side of the equation. Arithmetic.1. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Solve your math problems using our free math solver with step-by-step solutions. Step 1. Tap for more steps Direction: Opens Up. Model # 2P020810S4. Consider the form .. Solving quadratics by factorizing (link to previous post) usually works Factor x^{2}+2x+1. Examples. 2\times 1 . Free math problem solver answers your algebra, geometry, trigonometry, calculus, and Solve by Completing the Square x^2-2x-8=0. Find the x-intercepts. Solve polynomials equations step-by-step. 2, x, 8. Factor algebraic expressions step-by-step. y = x2 − 2x − 8 y = x 2 - 2 x - 8. x2 − 2x − 5 = 0 x 2 - 2 x - 5 = 0. In general, when x^{2}+bx+c is a perfect square, it can always be factored as \left(x+\frac{b}{2}\right)^{2}. Step 1. a = 1 a = 1. Just like numbers have factors (2×3=6), expressions … x 2-2x = 8 Now the clever bit: Take the coefficient of x , which is 2 , divide by two, giving 1 , and finally square it giving 1 Add 1 to both sides of the equation : On the right hand side … Algebra. Find a pair of integers whose product is c c and whose sum is b b. Linear equation. Enter a problem Cooking Calculators. Step 2. The system below represents the situation: c=4s c+s=30. polynomial-equation-calculator. Factor using the AC method.2. a = 1 a = 1. List all such … How to simplify your expression. Math notebooks have been around for hundreds of years. Tap for more steps Direction: Opens Down. Therefore, x = 2 and ( -4) will be the zeros of x^2-x-6=9; x^2-x-6=0; x^2-1=0; x^2+2x+1=3x-10; 2x^2+4x-6=0; Show More; Description. Step 1. Enter a problem Cooking Calculators. Math notebooks have been around for hundreds of years.3. Factorisation by Common Factors. y = x² + 2x - 8.4142 Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : x2=4x-4 One solution was found : x = 2 Rearrange: Rearrange the equation by subtracting what is to the right of the equal sign from This is not factorable normally. Tap for more steps x-intercept (s): (4,0),(−2,0) ( 4, 0), ( - 2, 0) Find the y-intercepts. Step 5. x2 + 2x = 8 x 2 + 2 x = 8. Factor x2 − 2x−8 x 2 - 2 x - 8 using the AC method. Simplify ±√8 ± 8. 11+6x+x^2=-\frac{6}{x} x^3-2x=0; Show More; Description. en. x−2 = 0 x - 2 = 0 x+4 = 0 x + 4 = 0 x^{2}+2x-8=y . Add 8 to both sides. Over the next few weeks, we x^{2}-2x-8. ∫ 01 xe−x2dx. Factor out of . See More Examples » x+3=5 1/3 + 1/4 y=x^2+1 Step 1: Enter the expression you want to factor in the editor. Add and . Standard VIII.