What is the coeffiecient of x^3 in \((x^4 + x^3 + x^2 + x + 1)^4\)
\(4x^3*1*1=4x^3\\ 4*x^2*3*x=12x^3\\ 4C3*x*x*x=4x^3\\ total\\ 20x^3\)
I get 20
Thanks!
+223 
