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3 November, 01:23

What is the true solution to 3 l n 2 + l n 8 = 2 l n (4 x)

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Answers (2)
  1. 3 November, 01:28
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    C. on edge
  2. 3 November, 04:14
    0
    Answer: 2

    Step-by-step explanation:

    3 ln (2) + ln (8) = 2 ln (4x)

    ln (2) ³ + ln (8) = ln (4x) ²

    ln (2³ · 8) = ln (4x) ²

    (2³ · 8) = (4x) ²

    64 = 16x²

    4 = x²

    ±2 = x

    -2 is an extraneous solution because x > 0

    The only valid answer is x = 2
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