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07-11-2017
Mathematics

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what is the coefficient of x^2 in the expansion of (x+2)^3

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dannielle dannielle

07-11-2017

(x+2)^3=x^3+2^3+3*x^2*2+3x*2^2=x^3+8+6x^2+12x

The coeficient of the x^2 is 6.

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