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posted by John Thursday, December 6, 2012 at 10:47pm.

When (5x^6+10x^5+2x^4+19x^3+2x^2+1)^10000 is multiplied out, what is the coefficient of x^4?

for the nth power, the coefficient of x^4 is 2(n^2-n+1) so plug in your value

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