# Math Help - simplifing expressions

1. ## simplifing expressions

hi how would i simplify this:
2a^2 x 3a^3 would it be 4a x 27a?

2. Originally Posted by andyboy179
hi how would i simplify this:
2a^2 x 3a^3 would it be 4a x 27a?
no, it would be $6a^5$

3. so 2x3=6 for the bottom numbers and 2+3=5 for the top numbers?

4. Originally Posted by andyboy179
so 2x3=6 for the bottom numbers and 2+3=5 for the top numbers?
Yep but only because the base (a) is the same