Determine if the given x value is a zero of f(x)=x^4+3x^3-6x^2+3; x=-2

Question

asked Mar 12, 2018 177k views

1 Answer

RoyalBigMack · Answer 1 · 2018-03-18T21:43:43+0000

Plug in -2 for x and evaluate.

f(-2) = (-2)^4 + 3(-2)^3 - 6(-2)^2 + 3

f(-2) = 16 - 24 - 24 + 3

f(-2) = -29

-2 is not a zero of the polynomial.