A Partial Solution Set Is Given for the Equation $$x ^ { 4 } - 4 x ^ { 3 } - 6 x ^ { 2 } + 40 x - 40 = 0 ; \{ 2,2 \}$$

Multiple Choice

A partial solution set is given for the equation. $$x ^ { 4 } - 4 x ^ { 3 } - 6 x ^ { 2 } + 40 x - 40 = 0 ; \{ 2,2 \}$$
Find the complete solution set.

A) $\quad 2,2 , \sqrt { 10 } , - \sqrt { 10 }$
B) $\quad 5,5 , \sqrt { 10 } , - \sqrt { 10 }$
C) $2,2 , \sqrt { 12 } , - \sqrt { 12 }$
D) none of these
E) $2,2 , \sqrt { 5 } , - \sqrt { 5 }$