What are the zeros of the quadratic function f of x is equal to 8 x squared minus 16 x minus 15 ?
A
x is equal to 1 minus square root of 7 and x is equal to 1 plus square root of 7B
x is equal to negative 1 minus square root of 15 eighths and x is equal to negative 1 plus square root of 15 eighthsC
x is equal to 1 minus square root of 23 eighths and x is equal to 1 plus square root of 23 eighthsD
x is equal to negative 1 minus square root of 2 and x is equal to negative 1 plus square root of 2