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15 December, 03:41

Which is a factor of x^2+7x-18

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Answers (2)
  1. 15 December, 04:05
    0
    x^2+7x-18

    Ask yourself:

    What adds up to 7 but multiplies to - 18?

    In this case:

    9 and - 2 would be the answer.

    9 * - 2=-18

    9-2=7

    Factor form:

    (x-2) (x+9)

    Final answer:

    (x-2) (x+9)
  2. 15 December, 04:11
    0
    factor (x^2+7x-18)

    This question is simple

    X^2 + 7x-18=0

    So Factor is by crossing: (X+9) (X-2)

    = X^2 - 2X + 9X-18

    = X=2 or X=-9
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