Write a polynomial function in standard form with zeros at -3, 2, and -1

Question

Write a polynomial function in standard form with zeros at -3, 2, and -1. 

Answer 1

If they have zeros at -3, 2, and -1 then the equation must be

 

(x + 3)(x - 2)(x + 1) = 0

 

Expand the equation to get

 

x³ + 2x² - 5x - 6