Hello, I have no idea on how to solve this problem:

Given the polynomials $\displaystyle A=x^3 +2x -1 , B=x^2-x+3$ evaluate them for $\displaystyle x=-2:1:3$

and calculate their product and its coefficients.

I need another way on doing this, instead of calculating A and B one by one

(I shouldn't use the simple method ie. $\displaystyle x=-1: A_{-1}=(-1)^3 +2(-1) -1= -4$ ....).

How can this be done? Thank you.