upnorth upnorth

17-05-2016
Mathematics

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If A=x+1, B=x^+2x-1, C=2x what is AB+C in simplest form

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17-05-2016

(x + 1)(x^2 + 2x - 1) + 2x

x^3 + 2x^2 -x + x^2 + 2x -1 + 2x

x^3 + 3x^2 + 3x -1

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