Solve the Radical Equation, and Check All Proposed Solutions $$x ^ { 3 } + 5 x ^ { 2 } - x - 5 = 0$$

Multiple Choice

Solve the radical equation, and check all proposed solutions.
- $$x ^ { 3 } + 5 x ^ { 2 } - x - 5 = 0$$

A) $\{ - 1,1 , - 5 \}$
B) $\{ 1 , - 5,5 \}$
C) $\{ - 5,5 \}$
D) $\{ 25 \}$