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

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


   

Question 36108: complete the square, and find the roots of the quadratic equation.
x^2 + 16x = 0
Answer by Prithwis(166) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 + 16x = 0
=> x^2 + 16x + 64 = 64
=> (x+8)^2 = 8^2
=> (x+8) = 8 or (x+8) = -8
=> x = 0 or x = -16