One Solution of a Polynomial Equation Is Given $- 2 x ^ { 3 } - 4 x ^ { 2 } + 2 x + 4 = 0 ; 1$

Multiple Choice

One solution of a polynomial equation is given. Use synthetic division to find any remaining solutions.
- $- 2 x ^ { 3 } - 4 x ^ { 2 } + 2 x + 4 = 0 ; 1$

A) 1,2
B) $- 1 , - 2$
C) $1 , - 2$
D) $- 1,2$