SOLUTION: Can someone help me solve 2 exercises? 4√81 6√64 Thank you

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Question 1157179: Can someone help me solve 2 exercises?
4√81
6√64
Thank you
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
4√81
Find the sqrt of 81.
---> 4*9 = 36
and
4*-9 = -36
================
6√64
Same as above.