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2 September, 09:51

Solve for x: log (3) + 2 log (x) = log (27)

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Answers (1)
  1. 2 September, 11:10
    0
    The solution is x = 3

    Step-by-step explanation:

    Hi there!

    First, let's write the equation:

    log (3) + 2 log (x) = log (27)

    Substract log (3) from both sides of the equation

    2 log (x) = log (27) - log (3)

    Apply logarithm property: log (a) - log (b) = log (a/b)

    2 log (x) = log (27/3)

    2 log (x) = log (9)

    Apply logarithm property: log (xᵃ) = a log (x)

    log (x²) = log (9)

    Apply logarithm equality rule: if log (a) = log (b) then a = b

    x² = 9

    Apply square root to both sides of the equation

    x = 3

    The solution is x = 3

    Have a nice day!
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