Posted by **Dania** on Thursday, November 18, 2010 at 12:27pm.

I need to simplify the following rational exponent:

(64n^9)^2/3

I've done the following but don't think this is right:

= 3|64n^18

= 4n^2.62

I don't know how to type in the root symbol so I used | to mean root. Can someone please verify this and if incorrect please explain where I went wrong? Thank you very much...

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