SOLUTION: complete the square, and find the roots of the quadratic equation. x^2 + 16x = 0

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: complete the square, and find the roots of the quadratic equation. x^2 + 16x = 0      Log On


   

Question 36030: complete the square, and find the roots of the quadratic equation.
x^2 + 16x = 0
Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
complete the square, and find the roots of the quadratic equation.
x^2 + 16x = 0...USE (A+B)^2=A^2+2AB+B^2
X^2+2(X)(8)+8^2-8^2=0
(X+8)^2=8^2
x+8=8...................OR X+8=-8
X=0................OR .....X=-16