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OpenStudy (anonymous):
9^-3*9^-1
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OpenStudy (triciaal):
rule for exponents: multiply numbers (or variables) with the same base add the powers
OpenStudy (triciaal):
what is your base?
OpenStudy (anonymous):
-3 and -1
OpenStudy (triciaal):
those are the powers your base is 9
OpenStudy (triciaal):
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