Inactive Tutor answered 04/10/13
On questions like these, I find it best to expand it to the best of our ability. What I mean is:
(-15)(x)(x)(x)(x)
---------------------- .
(3)(x)
Then we can simplify (-15/3). Also, remember that dividing exponents simply means
to subtract them. So, our x's would be x4/x. So, (-15/3)(x4/x).