Solve the Equation by Using the Square Root Property $( x + 9 ) ^ { 2 } = 12$

Multiple Choice

Solve the equation by using the square root property. Express any complex numbers using i notation.
- $( x + 9 ) ^ { 2 } = 12$

A) $x = \pm 2 \sqrt { 3 }$
B) $x = - 9 \pm 2 \sqrt { 3 }$
C) $x = - 9 \pm 2 \sqrt { 6 }$
D) $x = 2 \sqrt { 3 } \pm 9$