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11 August, 13:16

Solve 3^x - 5. What are the exact and approximate solutions?

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  1. 11 August, 15:24
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    x = log (5) / log (3)

    x=1.46497

    Step-by-step explanation:

    3^x - 5 = 0

    Add 5 to each side

    3^x = 5

    Take the log of each side

    log 3^x = log 5

    We know log a^b = b log (a)

    x log (3) = log (5)

    Divide side by log (3)

    x = log (5) / log (3)

    x=1.46497
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