SOLUTION: 1st of all, sorry about the previous question, i was looking in the wrong section, i found something similar in the square root section and understand better now. ok, I have to sim

Question 7150: 1st of all, sorry about the previous question, i was looking in the wrong section, i found something similar in the square root section and understand better now. ok, I have to simplify 243 to the power of - 2/5, i can get as far as 1 divided by 5th root of 243 to the power of 2, but after that my mind goes blank. the answer given is 1/9 and i need help working out how they got that. thank you in advance
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Well, your first step is ok:

=
Finding the square of a number is relatively easy.
Finding the fifth root of a number isn't. But you can do both with your calculator.
Type in 243 then ^ then (2/5) then hit the enter or = key.
You should get:
So the answer of 1/9 is correct.
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