[" The coefficient of "x^(4)" in the expansing "],[(1+x+x^(2)+x^(3))^(n)" is: "]

The coefficient of x^(4) in the expansion of (1+x+x^(2)+x^(3))^(n) is

The coefficient of x^(4) in the expansion of : (1+x+x^(2)+x^(3))^(n) is:

The coefficient of x^(4) in the expansion of (1+x+x^(2)+x^(3))^(n) is:

The coefficient of x^(4) in the expansion of (1-x)^(-2) is

The coefficient of x^(4) in the expansion of (1 + x + x^(2))^(3) is

The coefficient of x^4 in the expansion of (1+x+x^2+x^3)^n

The coefficient of x^(4) in the expansion of (1+x+x^(2)+x^(3))^(n) is *^(n)C_(4)+^(n)C_(2)+^(n)C_(1)xx^(n)C_(2)

The coefficient of x^(4) in the expansion of (1+x+x^(2)+x^(3))^(11) is where ({:(n),(r):}) = nC_(r)