You probably want to express it without negative powers.
It should simplify to
Here I go one more that I'm really not sure of, what I really hate is that we have all that practice homework but none of the exercise where as complexe as those in the actual homework, so I basically have no reference...
Can I simplify this even further? The answer cannot contain fractions or radicals.
Thank you so much, for all the help, I'm eternaly greatful!