
Randal M. answered 07/22/16
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(2x - 4)(3x + 7) = 2x × 3x + 2x × 7 - 4 × 3x - 4 × 7 = 6x2 + 14x - 12x - 28 = 6x2 + 2x - 28
Sarim K.
asked 07/22/16Randal M. answered 07/22/16
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