Question

Find a cubic function with the given zeros.

-7, 5, -3

A f(x) = x3 + 5x2 - 29x - 105
B f(x) = x3 + 5x2 - 29x + 105
C f(x) = x3 + 5x2 + 29x - 105
D f(x) = x3 - 5x2 - 29x - 105

Answer 1

A polynomial function with zeros a, b, and c, has equation y = (x - a)(x - b)(x - c).
Substitute a, b, and c with your given values, and multiply together the three binomials.