Question

8x^2+16x+8=0

Answer 1

so what are you trying to ask?

Answer 2

=> 8(x^2 + 2x + 1) = 0
=> 8(x^2 + x + x + 1) = 0
=> (x + 1)(x + 1) = 0
=> x = -1

Answer 3

Thanks!