1、初一合并同类项专项练习 1075x(2x7)(4x7) (8b2)2(4b5) (5x)(3x) 29a(6a) 1m(6m) 10x3x(104x) 40a229b2(12a2)(21b2) (y2z)(4yz) 2p2(pq)(1p2)pq 2b2(5a22b2)9b2 2(8ab3a2)(4ab8a2) 7x(4x7)(3x2) (6b6)5(6b9) (5x)(6x) 20a(40a) 3m(5m) 19x2x(203x) 4a211b2(20a2)(20b2) (y4z)(yz) 2p2(pq)(2p2)pq 4b2(2a29b2)6b2 8(5ab8a2)(5ab5a2) 8x(3
2、x8)(1x8) (6b9)6(6b6) (4x)(7x) 20a(17a) 4m(6m) 1x5x(118x) 9a215b2(19a2)(24b2) (y3z)(1yz) 2p2(pq)(1p2)pq 6b2(9a26b2)8b2 6(8ab4a2)(7ab9a2) 8x(7x8)(3x4) (5b7)6(4b1) (2x)(4x) 33a(36a) 3m(6m) x4x(29x) 20a228b2(16a2)(20b2) (y3z)(4yz) 1p2(pq)(3p2)pq 4b2(5a24b2)7b2 9(5ab9a2)(9ab9a2) 7x(6x6)(1x2) (7b6)8(7b6) (4x)(8x) 22a(39a)