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25 November, 05:55

Is this trinomial factorable r^2-15r+56

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  1. 25 November, 07:33
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    (r - 8) (r - 7)

    Step-by-step explanation:

    Consider the factors of the constant term (56) which sum to give the coefficient of the r - term ( - 15)

    The factors are - 8 and - 7, hence

    r² - 15r + 56 = (r - 8) (r - 7) ← in factored form
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