Question

Solve the quadratic equation.

8x2 + 16x + 8 = 0

A) 1
B) -1
C) 1 and 8
D) 1 and -1

Answer 1

D 1 and -1

Explanation:

`8 {x}^(2) + 16x + 8 = 0`

divided by 8

`{x}^(2) + 2x + 1 = 0`

(x+1)(x+1)=0

so x=+-1