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14 October, 21:19

If M = 5x^2 + 7x-4 and N=3x^2-4x+5 then M-N equals

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  1. 14 October, 23:34
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    5x²-3x²=2x²

    7x - (-4x) = 11x

    -4-5=-9

    so M-N=2x²+11x-9
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