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16 July, 00:19

How do you factor: 12x^2-4x-40

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  1. 16 July, 00:32
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    First factor the gcf out

    4 (3x^2-x-10)

    From here use slip and slide for the inner trinomial

    x^2-x-30

    (x-6) (x+5)

    (x-6/3) (x+5/3)

    (x-2) (3x+5)

    Final answer: 4 (3x+5) (x-2)
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