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5 October, 20:45

Factor the expression. x^2 - x - 42

a. (x 7) (x - 6)

b. (x - 7) (x 6)

c. (x - 7) (x - 6)

d. (x 7) (x 6)

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Answers (1)
  1. 6 October, 00:41
    0
    X^2 - x - 42 = x^2 - 6x + 7x - 42 = x (x - 6) + 7 (x - 6) = (x-6) (x+7);

    The correct answer is a.
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