ok so i am stuck on this problem and i can't figure it out. Can anyone explain this ? and walk through it ? Thanks !!

Sketch the graph of function Q(x) = x^3 - 1 / x^3 + 1. Determine the prime

factorization of Q(x) and graph the polynomial function.

So far, I have the horizontal asymptote y = 1 and vertical x = -1.