Solve the Equation by Completing the Square $$x ^ { 2 } + 6 x - 19 = 0$$

Multiple Choice

Solve the equation by completing the square. Express any complex numbers using i notation.
- $$x ^ { 2 } + 6 x - 19 = 0$$

A) $x = 2 \sqrt { 7 } \pm 3$
B) $x = - 3 \pm 2 \sqrt { 14 }$
C) $x = - 3 \pm 2 \sqrt { 7 }$
D) $x = \pm 2 \sqrt { 7 }$