Question

Solve x^2 + 8x + 8 = 0 by completing the square.

Which equation is used in the process?

a) (x + 4)^2= 0
b) (x + 4)^2= 4
c) (x + 4)^2= 8

Answer 1

x^2 + 8x + 8 = 0
x(x+8)+8=0
(x+4)^2-8=0
dividing by 8
1/8(x+4)^2=1
(x+4)^2=8

Answer 2

Thank you! @Nurali

Answer 3

Anytime.