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17 February, 21:31

What are the solutions of the equation x2 - 1 = 15?

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Answers (2)
  1. 18 February, 00:34
    0
    X^2-1=15

    x^2=16

    x=-4,4
  2. 18 February, 00:47
    0
    X2 - 1=15

    +1 + 1

    x2=16

    x2/2=16/2

    X=8
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