In both cases, you should have a negative power in the denominator which moves it up to the numerator. Be sure that you simplify the expression before evaluating.
How do you find these limits using L'Hopital's rule?
1.
2.
In both cases, when I apply L'Hopitals rule, the derivative of the denominator won't allow me to solve because there ends up being a zero in there. ie
Thanks.