(2p^4 + 7 - 8p^2) - (p + 6p^2 + 9)

(2p^4 + 7 - 8p^2) - (p + 6p^2 + 9)

2p^4 + 7 - 8p^2 - p - 6p^2 - 9

2p^4 + 7- 9 - 8p^2- 6p^2 - p

2p^4 -2 - 14p^2 - p