Question

Solve the quadratic equation.

8x^2 + 16x + 8 = 0

A)
1


B)
-1


C)
1 and 8


D)
1 and -1

Answer 1

Answer: -1

Explanation:

8(-1)^2+16(-1)+8=0

8-16+8=0

0=0

Answer 2

`Answer: \\ 8 {x}^(2) + 16x + 8 = 0 \\ \Leftrightarrow 8({x}^(2) + 2x + 1) = 0 \\ \Leftrightarrow {x}^(2) + 2x + 1 = 0 \\ \Leftrightarrow {(x + 1)}^(2) = 0 \\ \Leftrightarrow x + 1 = 0\Leftrightarrow x = - 1 \\ \Rightarrow B`