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March 27, 2017

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(5m-6)(3m+4)

  • collge alegrq - ,

    (5m-6)(3m+4)
    You could use the FOIL algorithm, first inner outer last
    15 m^2 + 20 m -18 m - 24 = 15 m^2 +2 m -24

    Or you could multiply term by term and add
    5m(3m+4) -6(3m+4)
    = 15 m^2 + 20 m - 18 m - 24 = 15 m^2 + 2 m = 24
    which we already knew

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