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Mathematics 8 Online
OpenStudy (amtran_bus):

Use the product rule to simplify

OpenStudy (amtran_bus):

\[-\sqrt[3]{81x^{10}y^5}\]

OpenStudy (amtran_bus):

It has been a long time...

OpenStudy (anonymous):

- 3 cube root 3 x X^10/3 x Y^ 5/3

OpenStudy (amtran_bus):

So, I know my first thing to do is see if I can make it a perfect cube. And I know 27, which has a perfect cube, *3 is 81. \[=-\sqrt[3]{27x^{9}y ^{3}*(3xy ^{2)}}\]

OpenStudy (amtran_bus):

Then what? Simplify the first part to =3x^3y?

OpenStudy (amtran_bus):

And don't the rest of it stay the same?

OpenStudy (anonymous):

give me the original question and ill attach the method

OpenStudy (amtran_bus):

Thanks

OpenStudy (amtran_bus):

Ignore the "y" at the edge of the page.

OpenStudy (anonymous):

Well you can use this \[\left( a ^{b} \right)^{c} = a ^{b \times c}\]

OpenStudy (anonymous):

In this case c would be 1/3 which represents the root

OpenStudy (amtran_bus):

I think I got it now, thanks.

OpenStudy (anonymous):

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