Question

Which of the following is a zero for the function f(x) = (x + 3)(x − 7)(x + 5)?

Answer 1

-3, 7, -5

Explanation:

Because of the zero-product-property, we can set each of the groupings to 0, to get each of our 3 zeroes.

x+3=0, x=-3

x-7=0, x=7

x+5=0, x=-5