Hello, and thanks in advance for the help.

I need to find the critical numbers of the function listed below. I understand that critical numbers mean one of two things, that the derivative at the point where x is critical is 0, or that the derivative does not exist.

It may simply be a simplification issue, but I'm having trouble solving for this derivative in a way that ti s manageable.

h(p) = (p-1)/(p^2+4)

Thanks again for the help!