3^(7x-1)*12^5x=2^10x
3个回答
两边取对数
(7x-1)log(2)3+5x(2+lg(2)3)=10x
7xlog(2)3-log(2)3+5xlog(2)3=0
12xlog(2)3=log(2)3
12x=1
x=1/12
相关问题
3^(7x-1)*12^5x=2^10x
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