algebra
posted by Pascale .
My algebra book says that a^n is equal to 1/a^n, which is equal to (1/a)^n. Does that then mean that a^n/m would be equal to (a/m)^n? Thank you very much.

No.
a^{n/m}
means mth root (a^{n}) 
factor 900 into its prime factors
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