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27 August, 12:54

Factor completely. 3x^2-3x-18 HINT: Factor out the greatest common factor first.

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  1. 27 August, 14:32
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    3 (x - 3) (x + 2)

    Step-by-step explanation:

    take out a common factor of 3 from each term

    = 3 (x² - x - 6)

    to factor the quadratic consider the factors of - 6 which sum to - 1

    These are - 3 and + 2, hence

    3x² - 3x - 18 = 3 (x - 3) (x + 2) ← in factored form
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