SOLUTION: How do I find the solution to this equation by completing the square: x^2-4x-8=0 Thank you for the help.

SOLUTION: How do I find the solution to this equation by completing the square: x^2-4x-8=0 Thank you for the help.

Algebra.Com

Question 1047285: How do I find the solution to this equation by completing the square:
x^2-4x-8=0
Thank you for the help.
Answer by ikleyn(52841) (Show Source): You can put this solution on YOUR website!
.

 = 0,

 = 0,     ( <--- add 4 and distract 4; then group )

 = 0,  --->

 = 12,

x-2 = +/- = +/-,

x = 2 +/-.

Solved.

RELATED QUESTIONS
How to slove this Quadratic equation by completing the square:... (answered by rapaljer)

How do I find the solution to this equation by completing the square: 2x^2-5x=7... (answered by MathLover1,josgarithmetic,MathTherapy)

Use completing the square or the quadradic formula to find the solutions to the equation: (answered by tutorcecilia)

using the quadratic equation x2-4x-5=0 perform the following task: solve by completing (answered by Earlsdon)

Solve the quadratic equations by completing the square. x^2-6x-3=0 This one I do... (answered by scott8148)

Can you please show me how to work this quadratic equation by completing the square... (answered by jim_thompson5910)

Hello, Can someone help me with this "Completing the Square" problem? I know there's... (answered by josmiceli)

Can you please help show me how to solve this quadratic equation by completing the... (answered by stanbon)

How do you solve the equation by completing the square of... (answered by algebrahouse.com)