Solve the Quadratic Equation $n ^ { 2 } - 22 = 0$

Multiple Choice

Solve the quadratic equation. $n ^ { 2 } - 22 = 0$ Use the following property: For any real number a , $x ^ { 2 } = a$ if and only if $x = \sqrt { a }$ or $x = - \sqrt { a }$ .

A) $\{ \sqrt { 22 } \}$
B) $\{ 11.0 \}$
C) $\{ \sqrt { 22 } , - \sqrt { 22 } \}$
D) $\{ - \sqrt { 22 } \}$
E) $\{ 22,0 \}$