Solve by Completing the Square $$x ^ { 2 } = - 4 x + 9$$

Multiple Choice

Solve by completing the square.
- $$x ^ { 2 } = - 4 x + 9$$

A) $\frac { 4 + 2 \sqrt { 13 } } { 2 }$
B) $\frac { - 4 \pm 2 \sqrt { 13 } } { 2 }$
C) $\frac { - 4 - 2 \sqrt { 13 } } { 2 }$
D) $- 4 \pm 2 \sqrt { 13 }$