Question

Simplify the product (3q-1)(5p2q5)(-4pq).

Answer 1

I have\[20p ^{3}q ^{6}-60p ^{3}q ^{7}\]

Answer 2

Assume it is 5p^2q^5 * -4pq =

-20p^3q^6 and then by 3q-1 (although I don't think this makes it "simpler")

=-60p^3q^7 -20p^3q^6

Answer 3

I had the -1 and the -4 cancel for the 20.
\[(15p ^{2}q ^{6}-5p ^{2}q ^{5})(-4pq)\]

Answer 4

The signs that is :)