What are the zeros of the quadratic function f(x) = 8x2 – 16x – 15? x = –1 – and x = –1 + x = –1 – and x = –1 + x = 1 – and x = 1 + x = 1 – and x = 1 +

The best way to do this is to use the quadratic formula.  a=8, b=-16, and c=-15.  When you fill all that into the quadratic formula you get roots of x = 2.695582496 and x = -.6955824958.  I'm not sure what your choice above are supposed to be...

Ithink the right answer could be 50%