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OpenStudy (anonymous):
Simplify: ( y^−7 × y^−3 )^−1
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OpenStudy (anonymous):
we should sum powers of variables so write in this form: (y^-7)(y^-3)=y^(-7-3)=y^-10 and then ..step 2 multiply powers: (y^-10)^(-1)=y^((-10)(-1))=y^10
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