If X = -2 Is a Root Of $x ^ { 3 } + 5 x ^ { 2 } - 4 x - 20 = 0$

Multiple Choice

If x = -2 is a root of $x ^ { 3 } + 5 x ^ { 2 } - 4 x - 20 = 0$ ,use synthetic division to factor the polynomial completely and list all real solutions of the equation.

A) $( x - 5 ) ( x + 2 ) ( x - 2 ) ; x = 5 , - 2,2$
B) $( x + 5 ) ( x + 2 ) ( x - 2 ) ; x = - 5 , - 2,2$
C) $( x + 5 ) ( x + 2 ) ^ { 2 } ; x = - 5 , - 2$
D) $( x + 5 ) ^ { 2 } ( x + 2 ) ; x = - 5 , - 2$
E) $( x + 5 ) ( x - 5 ) ( x - 2 ) ; x = - 5,5,2$