2 15*x -------------- ___________ / 6 \/ 1 - 25*x
/ 6 \ | 75*x | 15*x*|2 + ---------| | 6| \ 1 - 25*x / -------------------- ___________ / 6 \/ 1 - 25*x
/ 6 12 \ | 675*x 16875*x | 15*|2 + --------- + ------------| | 6 2| | 1 - 25*x / 6\ | \ \1 - 25*x / / --------------------------------- ___________ / 6 \/ 1 - 25*x