Using the ac method factor the trimonials.

15x^2 + 31x+2=

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  1. 15x^2 + 31x + 2

    A*C = 15*2 = 30 = 1*30. Sum = 1+30=31=B.
    15x^2 + (x+30x) + 2
    Form 2 factorable binomials:
    (15x^2+x) + (30x+2) =
    x(15x+1) + 2(15x+1) =

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