(3xy^-2)^2(-2x^-4y)^3 / (x^-3y^2)^-3

I tried to check problem and of course it says my answer is wrong, but I can't figure out why!

I got:

-72y^5/x^19

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- Sep 14th 2010, 08:51 PMgustahfanNot sure if I got this problem right, can someone verify?
(3xy^-2)^2(-2x^-4y)^3 / (x^-3y^2)^-3

I tried to check problem and of course it says my answer is wrong, but I can't figure out why!

I got:

-72y^5/x^19 - Sep 14th 2010, 09:05 PMundefined
- Sep 14th 2010, 09:08 PMEducated

Is this your equation? If it is, then is correct.

I don't know if you meant -2x^(-4y) or -2x^-4 * y. - Sep 14th 2010, 09:24 PMgustahfan
Thank you Undefined and Educated. Yes the way that undefined wrote it out was correct. I tried the [tex] formatting but it came out funky. I was checking it on mathway.com. And it came out with something like:

.

Again thanks for the replies, I knew I was right! - Sep 14th 2010, 09:28 PMundefined
- Sep 14th 2010, 10:00 PMEducated
Best way to learn LaTeX is to read the tutorial.

LaTeX Tutorial

I find that Wolfram|Alpha is a good maths computational website. Just remember to use brackets. - Sep 16th 2010, 12:05 AMRHandford
Hi All

This is also a helpful graphical interface to LaTeX, the script output can be copied and posted to site.

It can be found here