Find the Zeros of the Quadratic Function by Completing the Square

Multiple Choice

Find the zeros of the quadratic function by completing the square. List the x-intercepts of the graph of the function.
- $$f ( x ) = x ^ { 2 } - 14 x + 24$$

A) $x = 22 , x = 2$
B) $x = - 12 , x = - 2$
C) $x = \sqrt { 5 } , x = - 1$
D) $x = 12 , x = 2$