Use the Quadratic Formula to Solve the Equation $$x ( 5 x + 9 ) = 4$$

Multiple Choice

Use the quadratic formula to solve the equation.
- $$x ( 5 x + 9 ) = 4$$

A) $\left\{ \frac { - 9 - 1 } { 10 } , \frac { - 9 + 1 } { 10 } \right\}$
B) $\left\{ \frac { 9 - 1 } { 10 } , \frac { 9 + 1 } { 10 } \right\}$
C) $\left\{ \frac { - 9 - \sqrt { 161 } } { 10 } , \frac { - 9 + \sqrt { 161 } } { 10 } \right\}$
D) $\left\{ \frac { 9 - \sqrt { 161 } } { 10 } , \frac { 9 + \sqrt { 161 } } { 10 } \right\}$