Solve the Polynomial Equation in the Complex Numbers $$x ^ { 3 } + 2 x ^ { 2 } - 6 x + 8 = 0$$

Multiple Choice

Solve the polynomial equation in the complex numbers.
- $$x ^ { 3 } + 2 x ^ { 2 } - 6 x + 8 = 0$$

A) $\{ 1 + i , 1 - i , - 4 \}$
B) $\{ 1 + i , 1 - i , 4 \}$
C) $\{ 1 + i , 1 - i , 4 i \}$
D) $\{ - 4,4 \}$