Group the like terms together, 7p, 8pq, -2p, 9q.
Group the like terms together:
20y, 20a, 15q, -25, 25a, 12, y
Identify like terms in the following:
10pq, 7p, 8q, −p2q2, −7qp, −100q, −23, 12q2p2, −5p2, 41, 2,405p, 78qp, 13p2q, qp2, 701p2