Its just this one i need help with.
asked Nov 7, 2014 in Pre-Algebra Answers by Umutcan

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The expression can be simplified: open the brackets and we get 12mn-6m+2mn-4m=14mn-10m. It factorises a little: 2m(7n-5).

answered Nov 7, 2014 by Rod Top Rated User (486,860 points)

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