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OpenStudy (anonymous):
3^(2x)=9^(2x+4) X=? A. x=4 B. x=8 C. x= -4 D. x=2
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OpenStudy (*insert name here*):
Change the base of the exponents.. make \(9=3^2\) So you'l have.. \[\LARGE 3^{2x}=3^{2(2x+4)}\] Get rid of the bases.. \[\LARGE 2x=2(2x+4)\] Now solve,
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