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7 July, 08:29

Logy

Solve 4^x+2 = 12 for x using the change of base formula log, y = 10

log b

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Answers (1)
  1. 7 July, 11:17
    0
    x ≈ - 0.208

    Step-by-step explanation:

    4^ (x + 2) = 12

    log₄ 4^ (x + 2) = log₄ 12

    x + 2 = log₄ 12

    x + 2 = (log 12) / (log 4)

    x = - 2 + (log 12) / (log 4)

    x ≈ - 0.208
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