I really should know better but because a) I have no textbook and b) the internet was unyielding to my searches I have come to ask my question here which I really should know but it evades me.

How do I find the points of intersect of the curves $\displaystyle x^3$ and $\displaystyle x^{-3}$?

P.S I don't have a clue where to start either

Any help is greatly appreciated