Question

The value of a polynomial is 0 when x=-7. What expression must be a factor of the polynomial?

Answer 1

Answer: When the value of a polynomial is 0, it means that the polynomial equals 0. So, when x = -7, the polynomial can be expressed as:

P(x) = (x + 7)Q(x) = 0

Where Q(x) is another polynomial.

So, x + 7 must be a factor of the polynomial, P(x).

Therefore, the expression that must be a factor of the polynomial is (x+7)

Step-by-step explanation: