初一数学上册合并同类项及去括号专项练习题143.docx

1、初一数学上册合并同类项及去括号专项练习题143 1 1 (xy)(st) 4(8bx)4(n7q) 7 6 (2x1) y4(39b) 20x8(6y4c) (2xy)2(8x8b) 4 (22y)c 3(4d5ab8)3 1 1 (bc)(st) 5(9by)8(m2p) 8 6 (7x4) z6(15b) 18m3(7n3c) (2mn)8(7x2b) 1 (1210z)c 2(2c3mn1)8 1 1 (yz)(st) 2(9ay)2(m2q) 3 2 (7x3) y9(59c) 15m5(3b6z) (4mb)9(7x5c) 7 (1610y)z 8(2b8ab9)6 1 1 (ab)

2、(pq) 2(9ax)2(n8q) 6 7 (4a9) y4(15c) 7x2(8n7z) (7xn)7(4a8c) 3 (102y)z 6(6a9mn2)4 1 1 (yz)(ef) 4(8by)4(n8q) 8 9 (3y4) x3(19a) 15x9(8n4z) (5xn)7(7y9a) 5 (146x)z 6(2b3bc3)4 1 1 (xy)(mn) 4(7bx)6(m9q) 7 6 (3x3) y6(94a) 17m4(6b5z) (4mb)9(9x7a) 1 (206y)z 8(5c6xy1)3 1 1 (yz)(pq) 4(9by)6(m2p) 3 4 (9y2) y3(15b

3、) 9m3(3y2z) (5my)5(5y5b) 10 (186y)z 4(7b9mn5)9 1 1 (yz)(ef) 4(6bx)4(m2q) 5 3 (2m9) x4(12b) 17x7(6n6z) (9xn)5(8m8b) 3 (410x)z 5(9c2xy7)2 1 1 (xy)(pq) 3(9bx)8(m9q) 8 4 (3y5) y2(86b) 4x7(2b8t) (8xb)4(9y9b) 1 (148y)t 2(4d6mn5)8 1 1 (xy)(pq) 3(9bx)2(n8p) 7 8 (6b6) x9(69a) 3a7(4b8t) (3ab)6(4b5a) 2 (126x)t

4、 2(8b3xy7)3 1 1 (ab)(pq) 4(9by)4(m8q) 2 8 (2x2) z2(62a) 4m7(4n3c) (6mn)4(7x2a) 5 (42z)c 8(2d3bc8)4 1 1 (xy)(mn) 3(7ax)9(m3p) 7 6 (3y6) x6(24b) 12m3(7n4t) (9mn)8(8y3b) 3 (208x)t 4(7a5xy2)2 1 1 (ab)(st) 3(6ay)7(n6p) 3 5 (2y3) z7(89b) 15m4(7y7c) (2my)4(2y7b) 9 (126z)c 3(8c2mn5)8 1 1 (xy)(st) 2(9bx)5(m5q) 3 3 (4n6) y9(22c) 6x9(5n6z) (6xn)9(9n2c) 8 (128y)z 3(2a9ab9)7 1 1 (yz)(st) 3(7ay)8(m2p) 2 9 (4a9) y5(82c) 10a5(3b7z) (2ab)3(6a8c) 6 (42y)z 9(6c9mn9)5