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31 July, 16:41

1) log2 32+lne-lg100

2) log3 x + 4 log9 x = 9

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Answers (1)
  1. 31 July, 18:29
    0
    1. log2 32=5

    lne=1

    lg100=2

    5+1-2=4

    2. 4log9 x = 2log3 x=log3 x^2

    log3 x*x^2=9

    log3 x^3=9

    log 3 x=3

    x=27
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