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13 May, 12:12

X^2+14=9x

A) x = 2, x = 7

B) x = 3, x = 5

C) x = - 2, x = - 7

D) x = - 3, x = - 5

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Answers (1)
  1. 13 May, 13:37
    0
    X squared + 14=9x

    Square both sides and you get

    X+14=3x subtract 14 from both sides

    Z

    X=3x-14 subtract 3x

    -2x=-14 divide negative 2

    X=7
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