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