Question

one factor of a polynomial p(x) is (x + 7). what is the numerical value of p(-7)

0
-7
1
7

Answer 1

0! plug -7 into the eq

Answer 2

I'd be 1

Answer 3

@missylulu

Answer 4

wait a second.. if p(x+7) and we are given p(-7)
p(x) = p(-7)
so we are given x = -7 based on that notation
so we need to solve -7+7

Answer 5

everything cancels out...we're left with... nothing! :D

Answer 6

Since one factor of p(x) is p + 7, no matter what the other factors of p(x) are,
the factor p + 7 evaluates to 0 at x = -7.
Since zero multiplied by any number is zero, no matter what the other factors of the function are, at -7 function p(x) evaluates to zero, so p(-7) = 0.