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27 November, 11:10

Solve for in the equation x2 - 2x - 35 = 0.

{-5, - 7}

{5, - 7}

{-5, 7}

{5, 7}

+1
Answers (2)
  1. 27 November, 11:17
    0
    X² - 2x - 35 = 0

    x = - (-2) + / - √ ((-2) ² - 4 (1) (-35))

    2 (1)

    x = 2 + / - √ (4 + 140)

    2

    x = 2 + / - √ (144)

    2

    x = 2 + / - 12

    2

    x = 1 + / - 6

    x = 1 + 6 x = 1 - 6

    x = 7 x = - 5

    The answer is equal to {-5, 7}.
  2. 27 November, 11:35
    0
    Are u doing x,+,-, or division?
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