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31 December, 13:56

Solve the following equations.

ln (x + 2) + ln (x - 2) = ln (-2x - 1)

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Answers (1)
  1. 31 December, 14:24
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    The answer to your question is:

    Step-by-step explanation:

    Data

    ln (x + 2) + ln (x - 2) = ln (-2x - 1)

    In (x + 2) (x - 2) = In (-2x - 1)

    (x + 2) (x - 2) = (-2x - 1)

    x² - 4 = - 2x - 1

    x² + 2x - 4 + 1 = 0

    x² + 2x - 3 = 0

    (x + 3) (x - 1) = 0

    x1 = - 3 x2 = 1
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