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17 June, 06:00

What are the solutions of x^2-4x-9=29

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Answers (2)
  1. 17 June, 06:43
    0
    Answer: x = (4-√168) / 2=2-√ 42 = - 4.481

    x = (4+√168) / 2=2+√ 42 = 8.481
  2. 17 June, 07:54
    0
    x = - 4.48, 8.48 to the nearest hundredth.

    Step-by-step explanation:

    x^2 - 4x - 9 = 29

    Completing the square:

    (x - 2) ^2 - 4 - 9 = 29

    (x - 2) ^2 = 29 + 13 = 42

    x - 2 = + / -√42

    x = 2 + / -√42

    x = 8.48, - 4.48.
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