Question

A polynomial function has a zero at z = -4. Which expression MUST be a factor of this polynomial function?

Answer 1

Given:

A polynomial function has a zero at z = -4.

Required:

Which expression MUST be a factor of this polynomial function?

Explanation:

If a z = -4 is a zero of the polynomial then (z - 4) must be a factor of polynomial.

Answer:

(z - 4) must be a factor of polynomial.