Question

In the expantion of (1 + 3x +2x^2)^6 the coefficient of x^11 is

Answer 1

${(1 + 3x + {2x}^{2} )}^{6} = 1 + 729 {x}^{6} + 64 {x}^{12}$
So, coefficient of x¹¹ is 0