2-log32/9+log3 8-5的(2倍的log5 3)

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2-log32/9+log3 8-5的(2倍的log5 3)
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2-log32/9+log3 8-5的(2倍的log5 3)
2-log32/9+log3 8-5的(2倍的log5 3)

2-log32/9+log3 8-5的(2倍的log5 3)
2-log3 2/9+log3 8-5的(2倍的log5 3)
=2-log3 2+2+3log3 2-3的平方
=4+2log3 2-9
=2log3 2-5