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04-04-2017
Mathematics

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What is the coefficient of n^2 in the sum of -5^4+4n^2-n+5 and 7n^4-5n^3-9n^2+3n+2

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ghanami ghanami

04-04-2017

hello :
-5^4+4n^2-n+5 : the coefficient of n^2 is : 4
7n^4-5n^3-9n^2+3n+2 : he coefficient of n^2 is :-9

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