人教版初二数学上册单项式乘多项式练习题精选47.docx

1、人教版初二数学上册单项式乘多项式练习题精选47 (x2)(2x8) 4a(6a6b) (6x2y)(7x) 5 1 (ab25ab)ab x(4x3)2x(3x3)x(3x3) 6 5 (7104)(9108) (a4b)(6a) (3x)2(4x3y3) 7x4x 3y(7x2y) (4x)37x3 (4a)3(3a)3 9a25a 6y7y3 (6x4)(2x9) 9a(8a4b) (8x7y)(4x) 4 1 (ab35ab)ab x(4x4)x(x1)3x(2x1) 5 4 (3103)(8106) (a2b)(6a) (4x)2(2x4y2) 9x5x 6y2(6x2y) (4x)2

2、9x2 (4a)3(2a)3 2a8a 6y4y2 (3x4)(3x9) 2a(9a9b) (5x9y)(2x) 4 1 (ab25ab)ab3 x(x1)2x(x2)x(x4) 5 4 (4109)(2106) (6ab)(2a) (2x)3(2x4y2) 9x9x3 3y(3xy) (3x)22x3 (4a)3(2a)3 7a35a3 6y42y4 (9x4)(6x9) 6a(9a7b) (6x9y)(5x) 5 1 (ab35ab)ab x(3x3)2x(3x2)x(3x1) 4 5 (7102)(4102) (ab3)(6a) (3x)3(4x4y4) 8x37x 9y2(3xy4)

3、(3x)24x4 (3a)3(2a)3 8a7a2 6y34y3 (3x3)(8x7) 3a(4a5b) (4x6y)(4x) 4 1 (ab26ab)ab x(2x3)2x(2x4)x(2x2) 3 4 (4104)(4102) (9a4b)(4a2) (3x)3(2x2y2) 9x45x4 3y2(5xy2) (3x)22x4 (2a)2(4a)2 2a38a 2y7y4 (x2)(2x4) 3a(7a9b) (3x5y)(4x) 5 1 (ab26ab)ab3 2x(x2)x(x4)3x(x3) 4 5 (3108)(7106) (ab)(5a2) (4x)2(3x4y5) 2x3x 5

4、y3(9xy2) (4x)24x4 (4a)2(2a)2 7a37a3 7y32y4 (5x2)(2x3) 9a(5a6b) (9x4y)(8x) 5 1 (ab22ab)ab x(x4)3x(2x2)x(4x4) 6 5 (2104)(3108) (9a3b)(7a4) (4x)2(2x4y2) 8x6x 6y(3xy4) (3x)29x2 (3a)3(3a)3 6a46a 7y27y3 (3x4)(4x4) 6a(4a8b) (6x3y)(4x) 2 1 (ab34ab)ab3 4x(x2)x(4x4)2x(3x2) 3 2 (4107)(8104) (a4b)(7a3) (2x)3(4x

5、3y2) 9x23x 2y(3x4y3) (3x)29x4 (3a)2(2a)3 7a2a 6y4y2 (x4)(8x2) 2a(6a7b) (4x7y)(8x) 4 1 (ab24ab)ab2 4x(x4)3x(2x1)x(x2) 5 4 (8102)(8103) (a2b)(2a) (4x)3(3x4y3) 3x2x4 5y(4x3y) (2x)23x3 (4a)2(4a)3 2a4a4 6y42y (x3)(5x3) 6a(7a2b) (7x7y)(4x) 6 1 (ab35ab)ab 4x(2x1)x(3x3)x(x1) 5 6 (2105)(6103) (ab)(6a4) (2x)2

6、(3x2y3) 5x6x 8y(3xy4) (4x)38x2 (4a)3(2a)2 2a9a3 5y39y2 (x4)(4x4) 7a(5a4b) (7x2y)(7x) 6 1 (ab23ab)ab3 3x(3x4)x(x3)x(x2) 5 6 (7102)(6109) (ab2)(4a3) (3x)3(4x2y5) 8x4x3 7y2(4xy) (4x)25x3 (3a)2(4a)2 2a8a3 8y5y (x3)(7x9) 8a(2a9b) (6x7y)(8x) 6 1 (ab25ab)ab x(x2)x(x1)2x(x4) 5 6 (3105)(4108) (9a4b)(5a3) (2x

7、)2(4x4y2) 6x7x3 6y(6x2y4) (3x)34x4 (2a)2(4a)2 8a25a 2y37y (x4)(5x4) 9a(6a9b) (5x5y)(3x) 5 1 (ab25ab)ab x(2x2)x(4x4)4x(x4) 6 5 (7105)(6106) (8a3b)(7a) (4x)3(4x3y2) 6x3x 3y3(9xy) (2x)33x2 (3a)3(2a)2 2a44a 5y4y (x4)(8x3) 5a(6a3b) (2x2y)(5x) 5 1 (ab22ab)ab 4x(2x2)x(x2)x(3x2) 4 5 (7108)(4105) (ab)(5a) (2

8、x)2(3x2y2) 4x4x 7y(4xy3) (3x)38x2 (2a)2(3a)2 9a36a2 9y46y (x4)(5x6) 4a(8a3b) (6x9y)(4x) 5 1 (ab22ab)ab x(x4)x(x1)2x(x2) 4 5 (7107)(5109) (7a4b)(8a4) (3x)2(4x2y2) 8x4x4 9y(7x3y3) (3x)38x2 (2a)3(3a)3 6a9a3 3y42y2 (x2)(2x9) 3a(5a8b) (3x2y)(7x) 5 1 (ab34ab)ab 3x(x4)4x(x4)2x(x3) 6 5 (6102)(3109) (9a4b)(8

9、a3) (3x)2(3x4y3) 2x42x 7y(3x3y4) (2x)39x4 (2a)3(2a)3 4a42a3 4y48y (x2)(7x8) 4a(6a5b) (9x3y)(6x) 5 1 (ab35ab)ab2 4x(x3)x(4x3)4x(x4) 4 5 (3106)(5107) (ab2)(3a3) (2x)3(4x2y2) 8x28x3 8y(7xy4) (3x)29x4 (3a)2(2a)3 2a39a 9y4y3 (7x4)(8x7) 3a(7a9b) (5x2y)(7x) 5 1 (ab22ab)ab 4x(2x3)3x(4x1)2x(2x1) 4 5 (2108)(8

10、103) (ab3)(2a2) (4x)3(3x2y2) 8x9x3 2y(3xy2) (2x)33x2 (4a)2(4a)3 4a44a4 5y26y3 (5x3)(7x4) 4a(9a6b) (2x6y)(5x) 7 1 (ab32ab)ab2 4x(x3)4x(x3)x(2x4) 6 7 (2109)(3102) (9ab3)(6a) (4x)3(4x2y4) 6x28x3 3y3(8xy) (2x)25x2 (3a)2(4a)2 8a7a 6y43y (8x2)(5x8) 7a(5a9b) (2x2y)(7x) 5 1 (ab34ab)ab 4x(2x4)x(x1)x(2x4) 4 5

11、 (5104)(4106) (a3b4)(4a4) (4x)3(3x3y2) 2x3x 2y(2x2y3) (3x)36x4 (2a)2(3a)2 3a49a4 4y25y (x4)(4x7) 5a(8a9b) (4x2y)(6x) 3 1 (ab34ab)ab 4x(3x4)x(3x2)x(x4) 4 3 (3106)(4107) (9ab4)(5a) (4x)2(2x2y4) 5x7x2 6y(3xy3) (4x)28x2 (2a)3(2a)3 9a4a4 6y5y (2x2)(8x9) 8a(7a4b) (7x5y)(9x) 7 1 (ab35ab)ab x(4x1)4x(x4)x(3x

12、4) 6 7 (2103)(3105) (ab3)(8a) (4x)2(4x4y4) 7x34x2 2y2(4xy3) (2x)34x3 (2a)2(3a)3 7a4a2 9y26y (x3)(4x7) 2a(7a6b) (8x8y)(2x) 4 1 (ab22ab)ab 3x(3x4)x(x2)4x(x3) 5 4 (8103)(4104) (8a3b2)(6a3) (2x)2(4x2y3) 7x36x 5y3(7x2y) (3x)39x4 (4a)2(4a)2 6a7a2 6y6y (x2)(4x8) 9a(4a7b) (6x5y)(8x) 2 1 (ab32ab)ab2 2x(4x4)x

13、(x3)x(2x1) 3 2 (5108)(6108) (ab)(5a) (2x)3(3x3y2) 4x29x 3y(6xy4) (2x)35x4 (4a)3(2a)2 6a26a 6y3y (4x2)(6x6) 3a(6a6b) (7x5y)(5x) 3 1 (ab23ab)ab2 x(x1)x(x4)x(x1) 4 3 (6102)(8105) (a3b2)(7a3) (3x)3(4x3y3) 9x9x 8y3(8xy) (2x)26x3 (3a)3(3a)2 3a3a 4y8y (x4)(6x2) 6a(3a3b) (3x4y)(6x) 5 1 (ab24ab)ab x(2x3)x(3x

14、1)x(x3) 6 5 (8103)(3105) (a3b)(5a2) (3x)2(4x2y5) 6x42x2 5y4(4x3y3) (2x)35x4 (2a)2(3a)2 8a8a2 4y29y2 (x2)(3x3) 2a(7a2b) (7x7y)(3x) 5 1 (ab25ab)ab x(2x2)x(2x3)x(2x1) 4 5 (5104)(9106) (7ab)(5a) (3x)3(3x4y2) 7x45x3 7y(8xy4) (4x)27x2 (4a)3(4a)2 2a29a4 9y48y (7x3)(7x3) 3a(7a4b) (6x6y)(5x) 4 1 (ab26ab)ab2 4x(x4)2x(3x3)2x(x3) 5 4 (5108)(9109) (ab2)(9a) (3x)2(3x4y2) 4x34x2 3y(6xy3) (3x)39x2 (3a)3(3a)3 4a4a2 8y9y (2x2)(8x4) 3a(7a2b) (2x2y)(4x) 4 1 (ab25ab)ab 3x(2x4)x(4x1)x(x2