SOLUTION: Find the coefficient of x^22 in the expansion of (1-3x)(1+x^3)^10.

SOLUTION: Find the coefficient of x^22 in the expansion of (1-3x)(1+x^3)^10.

Algebra.Com

Question 1187142: Find the coefficient of x^22 in the expansion of (1-3x)(1+x^3)^10.
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The expansion of is
where the coefficient of is .
With it is

When that is multiplied times the term in will be

The coefficient of is .
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