SOLUTION: How do I evaluate 625^(-2/4)? We have just started to learn this and I cannot figure this out for the life of me.

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: How do I evaluate 625^(-2/4)? We have just started to learn this and I cannot figure this out for the life of me.      Log On


   

Question 847143: How do I evaluate 625^(-2/4)? We have just started to learn this and I cannot figure this out for the life of me.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How do I evaluate 625^(-2/4)?
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625%5E%28-2%2F4%29+=+625%5E%28-1%2F2%29
OK so far?
= 625%5E%28-1%2F2%29+=+sqrt%28625%5E%28-1%29%29
= 25%5E-1
= 1%2F25
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