Find the number of terms in the expansion
Probability
Level
2
The expression contains how many terms ?
The answer is 10626.
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1 solution
The expansion contains every monomial in v,w,x,y and z of degree 20, and there are
C(variables −1 + degree, degree)
C(5–1+20, 20)
or
C(24.20) = 24!/(4!*20!) = 10626 terms