Solve the Equation $x ^ { 3 } + 7 x ^ { 2 } = x ^ { 2 } - 9 x$

Multiple Choice

Solve the equation. $x ^ { 3 } + 7 x ^ { 2 } = x ^ { 2 } - 9 x$

A) $x = 3,0$
B) $x = - 3$
C) $x = - 3,0$
D) $x = - 3,3,0$
E) $x = 3$