Question

Given a polynomial f(x), if (x + 3) is a factor, what else must be true?

f(3) = 0
f(-3) = 0
f(0) = 3
f(0) = -3

Answer 1

`f(-3)=0`

Explanation:

we know that

The zero of a function is the value of x when the value of the function is equal to zero

In this problem

If
`(x+3)` is a factor of a polynomial

then

`x=-3` is a zero of the polynomial

so

For
`x=-3` ------->
`f(-3)=0`