Solve the Equation by Completing the Square $$5 x ^ { 2 } - 4 x = 9$$

Multiple Choice

Solve the equation by completing the square. Express any complex numbers using i notation.
- $$5 x ^ { 2 } - 4 x = 9$$

A) $x = \frac { 5 } { 9 } , - 1$
B) $x = \frac { 5 } { 9 } , 1$
C) $x = \frac { 9 } { 5 } , - 1$
D) $x = \frac { 9 } { 5 } , 1$