posted by mike .
I noticed this question before, did not answer it because I thought it was ambigious.
Are there two different problems here or is it one continuous multiplication.
I will assume you have
(2x^2y)(-5x^-5y^6) which is
(5y)^3 = 125y^3
not much was gained in "simplification" here.
yes they were two different problems and yes i know they're stupid questions in my math book.