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.
- $$f ( x ) = 16 x ^ { 2 } + 56 x + 13$$

A) $x = - \frac { 1 } { 16 } , x = - \frac { 13 } { 16 }$
B) $x = - \frac { 13 } { 8 } , x = \frac { 13 } { 8 }$
C) $x = \frac { 1 } { 4 } , x = \frac { 13 } { 4 }$
D) $x = - \frac { 1 } { 4 } , x = - \frac { 13 } { 4 }$