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9 May, 11:58

What is the true solution to l n 20 + l n 5 = 2 l n x x = 5 x = 10 x = 50 x = 100

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Answers (2)
  1. 9 May, 14:32
    0
    Answer: x = 10

    Step-by-step explanation:ln20+ln5=2lnx

    ln (20x5) = lnx^2

    ln100=1nx^2

    100=x^2

    square root

    x=10
  2. 9 May, 14:41
    0
    x = 10

    Step-by-step explanation:

    l n 20 + l n 5 = 2 l n x

    ln (20*5) = ln x²

    ln (100) = lnx²

    100 = x²

    x = + / - 10

    Since logs of negative numebrs don't exist, we reject - 10
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