0,2d(3d^2-3)(3d^2+9)

First, let's simplify the expression inside the parentheses:
3d^2 - 3 = 3d^2 - 3
3d^2 + 9 = 3d^2 + 9

Now, multiply the simplified expressions:
3d^2 - 3 * 3d^2 + 9 = 0,2d (9d^4 - 9)

Finally, distribute the 0,2d:
0,2d 9d^4 - 0,2d 9 = 1,8d^5 - 1,8d

Therefore, the result of the expression is 1,8d^5 - 1,8d.