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posted by shonye on Wednesday, February 13, 2013 at 11:49am.
Solve by reverse FOIL: 14x^2+48x+18=0
you have factors of the form (14x+?)(x+?) or (7x+?)(2x+?) where ? is is in the set {1,2,3,6,9,18} So, try a few until you come up with (7x+3)(2x+6)
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