In the expansion of (2x-3x ^ 3) ^ 10, the coefficient of x ^ 16

In the expansion of (2x-3x ^ 3) ^ 10, the coefficient of x ^ 16

The 16th power coefficient is C (10,3) times 2 ^ 7 times - 3 ^ 3
That is 120 * 128 * (- 27) = - 414720