Determine the Most Efficient Method to Use When Solving a Quadratic

Multiple Choice

Determine the Most Efficient Method to Use When Solving a Quadratic Equation
Solve the equation by the method of your choice.
- $$11 x ^ { 2 } - 55 = 0$$

A) $\{ - \sqrt { 5 } , \sqrt { 5 } \}$
B) $\{ - \sqrt { 55 } , \sqrt { 55 } \}$
C) $\left\{ - \frac { \sqrt { 55 } } { 11 } , \frac { \sqrt { 55 } } { 11 } \right\}$
D) $\{ \sqrt { 5 } \}$