Use Factoring by Grouping to Solve the Equation $$x ^ { 3 } + 2 x ^ { 2 } - 16 x - 32 = 0$$

Multiple Choice

Use factoring by grouping to solve the equation.
- $$x ^ { 3 } + 2 x ^ { 2 } - 16 x - 32 = 0$$

A) $- 4 , - 2,2$
B) $2 , - 4,4$
C) $- 2,2,4$
D) $- 2 , - 4,4$