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12 April, 21:40

How to solve 2^x = 22.5?

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Answers (2)
  1. 12 April, 23:01
    0
    Take the ln of both sides

    remember

    ln (a^x) = xln (a)

    so

    ln (2^x) = ln (22.5)

    xln (2) = ln (22.5)

    divide both sides by ln2

    x=ln (22.5) / ln (2)

    if you want to evaluate

    use calculator

    x=4.49185
  2. 13 April, 01:18
    0
    X=4.491853 is the answer
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