Question

If x = 3 is a zero of the polynomial function f(x) = 2x3 + x2 − 25x + 12, which of the following is another zero of f(x)?

x = −3
x = 4
x = −4
x = 12

Answer 1

divide or factor out the given zero to get a reduced polynomial and then factor (or use quadratic equation because it will be a quadratic).

Answer 2

you can also use synthetic division to reduce the polynomial

Answer 3

you there? does that help, or?