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3 January, 13:42

X^2+6x+9=16, I need to complete the square

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Answers (2)
  1. 3 January, 14:50
    0
    X² + 6x + 9 = 16

    x² + 6x + 9 - 16 = 16 - 16

    x² + 6x + 9 - 16 = 0

    x² + 6x - 7 = 0

    and then find the factor:

    (x + 7) (x - 1) = 0

    x + 7 = 0; x - 1 = 0

    x = - 7; x = 1

    and there is your factors
  2. 3 January, 14:55
    0
    The first x is x=-7, and the second x=1
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