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30 August, 20:49

Write this trinomial in factored form.

5b^2-b-4

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  1. 30 August, 23:30
    0
    (5b + 4) (b - 1).

    Step-by-step explanation:

    5b^2 - b - 4 ( - 4 * 5 = - 20 and - 5b + 4b = - b so we have:

    = 5b^2 - 5b + 4b - 4

    = 5b (b - 1) + 4 (b - 1)

    = (5b + 4) (b - 1).
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