Solve the Equation $$x ^ { 3 } + 3 x ^ { 2 } = 108 x$$

Multiple Choice

Solve the equation.
- $$x ^ { 3 } + 3 x ^ { 2 } = 108 x$$

A) $\{ - 12,9 \}$
B) $\{ 12 , - 9 \}$
C) $\{ 12,0 , - 9 \}$
D) $\{ - 12,0,9 \}$