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

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) (Show Source): You can put this solution on YOUR website!

then

and finally

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