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13 February, 11:18

Factor completely x2 - 7x + 18

Prime

(x - 9) (x - 2)

(x - 9) (x + 2)

(x + 9) (x + 2)

+3
Answers (1)
  1. 13 February, 13:18
    0
    x2 - 7x + 18

    is prime

    there is no way you can make two numbers multiply to get positive 18 and add to get negative 7

    (x - 9) (x - 2) = x^2 - 11x + 18

    (x - 9) (x + 2) = x^2 - 7x - 18

    (x + 9) (x + 2) = x^2 + 11x + 18
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