Please provide solution of these 2 problems...........................

Dear student


If I understand the question, you want the number of ways of choosing six integersa1,…,a6a1,…,a6with0≤ai≤40≤ai≤4and∑61ai=14∑16ai=14. The answer is the coefficient ofx14x14in the polynomial(x4+x3+x2+x+1)^6

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