Solve the Equation in the Real Number System $2 x ^ { 4 } - 2 x ^ { 3 } + x ^ { 2 } - 5 x - 10 = 0$

Multiple Choice

Solve the equation in the real number system.
- $2 x ^ { 4 } - 2 x ^ { 3 } + x ^ { 2 } - 5 x - 10 = 0$

A) $\left\{ - \frac { \sqrt { 10 } } { 2 } , \frac { \sqrt { 10 } } { 2 } \right\}$
B) $\{ 1 , - 2 \}$
C) $\{ - 1,2 \}$
D) $\left\{ - \frac { 5 } { 2 } , \frac { 5 } { 2 } \right\}$