Let f(x)=2x^2-x+1. Find:

Question

F(x-1) + f(x+1)

I am not sure how to set up problem.

Answer 1

f(x-1)=2(x-1)^2-(x-1)+1
expand that out.
f(x+1)=2(x+1)^2-(x+1)+1
exand that out

now, add.

Answer 2

Thanks so much. Got it!