SOLUTION: how do i rationalize this? the n-th root is 3 5/81

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Question 843818: how do i rationalize this? the n-th root is 3 5/81
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
3%265%2F81=248%2F81
then


and finally
%0D%0A%28root%28n%2C248%29%2Aroot%28n%2C81%5E%28n-1%29%29%29%2F81%0D%0A