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16 April, 21:03

Quadratics

the '2' is squared symbol

x2+12x+35=0

x = or x=

+5
Answers (1)
  1. 17 April, 00:02
    0
    x² + 12x + 35 = 0

    x² + 7x + 5x + 35 = 0

    x (x) + x (7) + 5 (x) + 5 (7) = 0

    x (x + 7) + 5 (x + 7) = 0

    (x + 5) (x + 7) = 0

    x + 5 = 0 or x + 7 = 0

    - 5 - 5 - 7 - 7

    x = - 5 or x = - 7

    Solution Set: {-5, - 7}
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