Is the binomial a factor of the polynomial function?
f(x) = x^3 + 4x^2 - 9x - 36
pick "YES" or "NO" for each binomial
(x-1) YES or NO?
(x-3) YES or NO?
(x+3) YES or NO?
(x-4) YES or NO?
(x+4) YES or NO?
f(x) =x^3 - 4x^2 - 9x - 36 factors as
x^2(x - 4) - 9(x - 4) =
(x - 4) (x^2 - 9) =
(x - 4) (x + 3) ( x - 3)
So only answers 2,3, and 4 are correct