Question

What are the zeros of the quadratic function f(x) = 8x^2 – 16x – 15

Answer 1

 zeros of the quadratic function when f(x) = 0
so 
8x^2 – 16x – 15 = 0
(8x + 5)(x - 3) = 0
8x + 5 = 0; x = -5/8
   x - 3 = 0; x = 3

Answer
x = -5/8 and x = 3