Solve the Equation by Completing the Square $$4 x ^ { 2 } - 4 x - 8 = 0$$

Multiple Choice

Solve the equation by completing the square.
- $$4 x ^ { 2 } - 4 x - 8 = 0$$

A) $\{ 2 , - 1 \}$
B) $\left\{ \frac { 1 } { 2 } , 1 \right\}$
C) $\left\{ \frac { 1 } { 2 } , - 1 \right\}$
D) $\left\{ \frac { 1 } { 2 } , 0 \right\}$