Question

. What is a cubic polynomial function in standard form with zeros 1, –2, and 2?
= x3 + x2 – 3x + 4
= x3 + x2 – 4x – 2
= x3 + x2 + 4x + 4
= x3 – x2 – 4x + 4

Answer 1

you gotta factor them

Answer 2

or sub those zeroes in and see if they satisfy the equation