解不等式log3(3^x-1)*log(3^(x+2)-9)
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解不等式log3(3^x-1)*log(3^(x+2)-9)解不等式log3(3^x-1)*log(3^(x+2)-9)解不等式log3(3^x-1)*log(3^(x+2)-9)log3(3^x-1
解不等式log3(3^x-1)*log(3^(x+2)-9)
解不等式log3(3^x-1)*log(3^(x+2)-9)
解不等式log3(3^x-1)*log(3^(x+2)-9)
log3(3^x-1)*log3(3^(x+2)-9)
log3(28/27)
解不等式log3(3^x-1)*log(3^(x+2)-9)
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