Originally Posted by

**mcaelli** Hi, I have an assignment due tomorrow. There are two questions that i am stuck on. Could you please help me out with them? They are:

1) (2a^³)^2 x 3(a^-4 b)^-³

______________________

4b^-5

Hello! May I know if your question is:

__(2a³)² x 3(a^__**-4)(**__b)-³__

4b^-5

[it is b to the power of 3 right?]

If I solve this question:

__(2a³)² x 3(a^-4)(____b)-³__

4b^-5

= __4(a^6) x 3b^5__

4(a^4)(b³)

Cancelling off common terms 4 and a^4 and b^3, I will get: a² + b²

I think it is correct, but i am not sure of your question...