(a) use the zero or root feature of a graphing utility to approximate the zeros of the function accurate to three decimal places,
(b) determine the exact value of one of the zeros, and
(c) use synthetic division to verify your result from part (b), and then factor the polynomial completely.
1. f (x) = x3 − 2x2 − 5x + 10
2. g(x) = x3 + 3x2 − 2x - 6