The question I am stuck on is:

lim sp(x+h)² –x²

h→0 spch

I know that h=0 is undefined because that would make the denominator 0. I also know that if I sub 0 in to solve the limit algebraically, I get 0 as a numerator as well, which I know is indeterminate form.

The problem is, I am not sure how to further factor in order to get h out of the denominator, or if there is even a limit. My textbook says that most often indeterminate form suggests that there is a limit. I am just unsure as to what I should do next.

As for background information, I am new to these topics but generally catch on well enough. I am just looking for a little direction.