Приведите подобные слагаемые и укажите степень многочлена 2p^2+3pq-pq^2+7q^2-2pq+5qq-9p^2-12pq^2 27a^2bc+23abbc-25abc^2-11abc^2-33a^2bc+48acb^2

1) 2p^2 + 3pq - pq^2 + 7q^2 - 2pq + 5qq - 9p^2 - 12pq^2 = = 2p^2 + 3pq - pq^2 + 7q^2 - 2pq + 5q^2 - 9p^2 - 12pq^2 = = 2p^2 - 9p^2 + 3pq - 2pq - pq^2 - 12pq^2 + 7q^2 + 5q^2 = = (2p^2 - 9p^2) + (3pq - 2pq) + (-pq^2 - 12pq^2) + (7q^2 + 5q^2) = = p^2(2 - 9) + pq(3 - 2) + pq^2(-1 - 12) + q^2(7 + 5) = = -p^2(-2 + 9) + pq - pq^2(1 + 12) + 12q^2 = = -p^2(9 - 2) + pq - 13pq^2 + 12q^2 = = -7p^2 + pq - 13pq^2 + 12q^2 == -13pq^2 - 7p^2 + 12q^2 + pqОтвет: -13pq^2 - 7p^2 + 12q^2 + pq.2) 27a^2bc + 23abbc - 25abc^2 - 11abc^2 - 33a^2bc + 48acb^2 == 27bca^2 + 23acb^2 - 25abc^2 - 11abc^2 - 33bca^2 + 48acb^2 = = 27bca^2 - 33bca^2 + 23acb^2 + 48acb^2 - 25abc^2 - 11abc^2 = = (27bca^2 - 33bca^2) + (23acb^2 + 48acb^2) - (25abc^2 - 11abc^2) = = bca^2(27 - 33) + acb^2(23 + 48) - abc^2(25 - 11) = = -bca^2(-27 + 33) + 71acb^2 - 14abc^2 = = -bca^2(33 - 27) + 71acb^2 - 14abc^2 = = -6bca^2 + 71acb^2 - 14abc^2Ответ: -6bca^2 + 71acb^2 - 14abc^2