# How do you simplify #(4a^2)(-3a)(-5a^4)# using the product of powers property?

##### 1 Answer

Jan 21, 2015

The result is

First of all, let's see that the sign is positive: one factor is positive, and two factors are negative, so the sign changes twice and it is + in the end.

Then, we simply multiply the coefficient:

Finally, we multiply the powers of