6 Determine the Most Efficient Method to Use When Solving $$x ^ { 2 } + 10 x + 10 = 0$$

Multiple Choice

6 Determine the Most Efficient Method to Use When Solving a Quadratic Equation
- $$x ^ { 2 } + 10 x + 10 = 0$$

A) $\{ - 5 - \sqrt { 15 } , - 5 + \sqrt { 15 } \}$
B) $\{ 5 + \sqrt { 15 } \}$
C) $\{ 5 - \sqrt { 10 } , 5 + \sqrt { 10 } \}$
D) $\{ - 10 + \sqrt { 10 } \}$