Question

If the factors of a polynomial are x+8 and x+4, what values of x make of polynomial 0?​

Answer 1

x = -8, x = -4

Explanation:

Adding a number and its opposite gives a result of 0. That is, x+8 will be 0 when x = -8, because -8 +8 = 0.

Likewise, x+4 will be zero when x = -4, because -4 +4 = 0.

The values of x that make (x+8)(x+4) = 0 are -8 and -4.