IntegerSolution BinomialExpansion AMC10/12 Intermediate
2016


Problem - 2884

For some particular value of $N$, when $(a+b+c+d+1)^N$ is expanded and like terms are combined, the resulting expression contains exactly $1001$ terms that include all four variables $a, b,c,$ and $d$, each to some positive power. What is $N$?


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