Math CentralQuandaries & Queries


Question from john, a student:

what is the exponent form of 9^4/7^-2 and 6^-3/10^-5

Hi John,

"Exponential form" just means that the expression involves exponents so it's not clear what you are expected to do. My guess is that you are to write these expressions without the division symbol. Let me try with


Since $5^{-3} = \frac{1}{5^3}$ my expression can be written

\[\frac{6^4}{5^{-3}} = \frac{6^4}{\frac{1}{5^3}} = 6^4 5^3\]

Now try your two expressions.


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