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5 November, 10:09

2mn+4n^2 and 5m^2-7mn

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  1. 5 November, 10:37
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    Find the sum 2mn + 4n2 and 5m2 - 7mn

    5m^2 + (2-7) mn + 4n^2

    =5m^2 - 5mn + 4n^2
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