5*d 3*d
3*c + ------ + c - ------
35*c*d 21*c*d4.0*c
2 / 2\
- 105*c*d + 21*c*d*\5*d + 140*d*c /
------------------------------------
2 2
735*c *d 5*d 3*d
4*c + ------ - ------
35*c*d 21*c*d