What is the coefficient of x ^ 3 in the expansion of (x + 2) ^ 6? What we want is how to get the n value of n for C6

What is the coefficient of x ^ 3 in the expansion of (x + 2) ^ 6? What we want is how to get the n value of n for C6

The lower subscripts of expansion coefficient C are all 6, and the upper subscripts are (6-th power) of X
For example, to find the coefficient C of X & # 179, the superscript is 6-3 = 3
C3 6 = 6 × 5 × 4 △ 3 △ 2 = 20, so the coefficient is 20 × 2 ^ (6-3) = 160
The coefficient of x ^ 6 is C0 6 × 2 ^ 0, and the coefficient of x ^ 5 is C1 6 × 2 ^ 1
The coefficient of x ^ 4 is C2 6 × 2 & # 178; the coefficient of X & # 179; is C3 6 × 2 & # 179;
The coefficient of X is C 46 × 2 ^ 4, and the coefficient of X is C 56 × 2 ^ 5