Now, before I get started I just want to make it clear that this is a problem on a take-home quiz. Just making that clear in case someone has some objections over it.
The problem is to Evaluate f(x) = -x^2 - 2x - 3 where f(x+h). This is what I've gotten so far:
-(x+h)^2 - 2(x+h) - 3
-(x^2 + h^2 + 2xh) - 2x - 2h - 3
-x^2 - h^2 - 2xh - 2x - 2h - 3
Well, that is as far as I can think to get. Am I missing something here or is that the answer?