初一数学上册合并同类项及去括号专项练习题80.docx

1、初一数学上册合并同类项及去括号专项练习题80 1 1 (yz)(pq) 4(7by)2(m7p) 9 6 (7y8) x2(69a) 4m4(3n6z) (4mn)2(6y9a) 1 (68x)z 4(3d4xy9)2 1 1 (xy)(st) 4(7bx)9(n5q) 4 7 (3b8) y3(23a) 14x8(9b7c) (4xb)8(2b8a) 5 (2010y)c 7(6c2bc8)4 1 1 (bc)(mn) 5(6bx)9(m5p) 2 9 (8b1) x6(63b) 12a2(9n3z) (6an)2(2b2b) 1 (86x)z 3(4d7mn5)5 1 1 (ab)(pq)

2、 3(7by)7(m9p) 2 7 (9n8) z5(19a) 13a9(3n8c) (5an)4(3n6a) 1 (1210z)c 3(4d4ab2)3 1 1 (yz)(mn) 5(6by)7(m3p) 7 5 (5b7) z2(97a) 3m2(8b4t) (4mb)8(5b9a) 5 (182z)t 4(9d9xy4)4 1 1 (xy)(pq) 3(6by)7(m8q) 4 2 (7y5) x9(63b) 2a7(6n8z) (5an)2(5y3b) 1 (202x)z 9(4d5xy2)8 1 1 (xy)(ef) 5(8by)9(m8q) 2 6 (3y2) z9(16b) 13

3、a5(4y2t) (8ay)6(5y4b) 1 (204z)t 2(4a7bc6)6 1 1 (ab)(mn) 3(8by)3(m3q) 2 6 (4m3) y3(18c) 10m2(6b7t) (6mb)7(7m4c) 3 (206y)t 6(2a3ab1)2 1 1 (yz)(mn) 3(8bx)5(m3p) 5 9 (5b8) x7(38c) 11m4(2y8t) (3my)7(3b5c) 7 (24x)t 5(7c3xy5)6 1 1 (bc)(mn) 2(6ax)4(m4p) 8 9 (5b2) x6(24a) 6a9(7y3t) (8ay)4(3b6a) 2 (142x)t 3(6

4、b5ab8)3 1 1 (ab)(pq) 3(7ax)6(m2p) 4 8 (9x9) y4(88c) 7m7(9n9c) (8mn)5(2x5c) 1 (204y)c 4(3a2mn6)3 1 1 (ab)(mn) 4(6bx)6(m3p) 9 3 (3a8) y4(13a) 20a2(2b7t) (4ab)9(9a9a) 4 (148y)t 8(7c8ab5)5 1 1 (xy)(ef) 4(8ay)2(n6p) 9 2 (3y4) y4(26b) 20a8(3y3c) (7ay)5(2y5b) 6 (42y)c 5(2b8mn6)7 1 1 (bc)(pq) 5(9bx)2(n4q) 4 5 (7x5) y8(69a) 6m8(3y9c) (6my)4(6x8a) 3 (1210y)c 8(8a6mn7)4 1 1 (yz)(mn) 3(9by)3(m5q) 9 3 (4a1) y7(43b) 14a6(5y5z) (7ay)7(7a8b) 1 (22y)z 4(5b3ab9)6