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1 November, 17:39

Solve for x. x^2-3x-70=0

x^2 is x to the second power

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Answers (2)
  1. 1 November, 18:03
    0
    X² - 3x - 70=0

    x² + 7x - 10x - 70=0

    x (x+7) - 10 (x+7) = 0

    (x+7) (x-10) = 0

    x + 7 = 0 or x - 10 = 0

    x = - 7 x = 10

    Answer: x=-7, x=10
  2. 1 November, 18:07
    0
    x^2-3x-70=0

    (x - 10) (x + 7) = 0

    x - 10 = 0; x = 10

    x + 7 = 0; x = - 7

    answer

    x = - 7 and x = 10
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