初一数学上册合并同类项及去括号专项练习题145.docx

1、初一数学上册合并同类项及去括号专项练习题145 1 1 (bc)(pq) 2(6by)8(n4q) 2 9 (7n5) y5(38c) 19x3(3y6c) (7xy)7(2n6c) 1 (208y)c 9(6d5xy5)2 1 1 (ab)(mn) 3(6by)8(m4p) 7 9 (2n1) x8(28b) 17a7(6n8c) (3an)4(5n8b) 2 (182x)c 5(6b5mn1)3 1 1 (ab)(st) 4(9ay)7(n3q) 8 5 (8y8) z2(93c) 6a8(4b4z) (6ab)5(4y2c) 2 (1610z)z 8(5a7bc5)3 1 1 (xy)(

2、mn) 2(7by)4(n9q) 2 2 (7a1) x9(17a) 14m8(2b7c) (6mb)6(3a3a) 1 (62x)c 6(5d9mn6)2 1 1 (yz)(pq) 4(9ay)5(m2p) 5 3 (6n4) x3(44c) 17a8(9y3z) (8ay)5(9n4c) 2 (142x)z 3(6d2xy8)3 1 1 (yz)(st) 2(6ax)3(m4q) 5 8 (2m5) z8(65b) 7a8(4y4c) (5ay)9(3m3b) 1 (210z)c 7(7c6mn2)7 1 1 (xy)(mn) 3(9ay)3(m8p) 3 9 (6x8) y9(78c)

3、15m3(9n3z) (3mn)9(7x8c) 7 (146y)z 2(8b5mn1)6 1 1 (xy)(pq) 5(9ay)5(n9p) 6 9 (8x9) z7(46a) 12a5(9y3t) (6ay)7(3x5a) 9 (1810z)t 6(5b6ab6)8 1 1 (ab)(mn) 4(7by)2(n4q) 6 7 (3n7) y2(99c) 9a8(7b7z) (7ab)9(4n4c) 2 (186y)z 7(6c9mn7)3 1 1 (bc)(st) 2(6ay)5(m3q) 5 5 (2y2) x5(79a) 9x7(7y8c) (6xy)3(8y9a) 3 (106x)c

4、5(9d9mn9)2 1 1 (bc)(st) 3(9bx)6(m2p) 7 3 (8x2) y5(18a) 20m8(9n7z) (7mn)6(3x6a) 1 (162y)z 3(3d6mn3)2 1 1 (ab)(mn) 5(9by)7(m6q) 5 3 (3b9) x9(49a) 7a7(9b7c) (5ab)2(6b4a) 1 (48x)c 4(2c8ab4)2 1 1 (ab)(ef) 2(6bx)9(n2p) 2 9 (2y2) z5(39c) 7m2(6n6c) (3mn)6(4y8c) 9 (88z)c 9(5a8xy2)8 1 1 (ab)(pq) 3(6ay)7(m6p) 6 6 (9m3) y8(12c) 11x2(3n8c) (8xn)5(5m6c) 1 (68y)c 5(5b7ab5)2 1 1 (bc)(pq) 5(7by)9(n9q) 6 8 (3m6) y5(94b) 9m8(2n4z) (8mn)5(9m4b) 1 (148y)z 2(8b8mn6)7