Solve the Equation by the Square Root Property $$5 x ^ { 2 } = 80$$

Multiple Choice

Solve the equation by the square root property.
- $$5 x ^ { 2 } = 80$$

A) $\{ - 4,4 \}$
B) $\{ - 4 \sqrt { 5 } , 4 \sqrt { 5 } \}$
C) $\{ - 5,5 \}$
D) $\{ 0 \}$