Anybody up for some BASIC algebra?

I've got a take home test for a math108 class and would much rather watch The Adventures of Pete and Pete than struggle through this for the next 3 hours... I've only got about 10 problems left that I don't know how to do, plz help me anonymii.

1) "Simplify the expression. Express the answer so that all exponents are posetive. Whenever an exponent is 0 or negative, we assume that the base is not 0.

-3x^-3 "

mkay, I watched a couple episodes of Pete & Pete...

3) "Perform the indicated operations and simplify the result. Leave the answer in factored form.

[x-(1/x^2)] / [x-(1/x^3)] "

wtf am i do?