Question

What are the zeros of the polynomial function`f(x)=x(x-4)(x+9)`?

Answer 1

0, 4, and -9

Explanation:

The product of these monomials is a degree 3 polynomial. So, there are 3 roots (values where the function is zero). Clearly, by substitution these occur when x = 0, x= 4, and x= -9.