人教版初二数学上册单项式乘多项式练习题精选23.docx

1、人教版初二数学上册单项式乘多项式练习题精选23 (3x4)(7x9) 7a(9a6b) (9x4y)(4x) 4 1 (ab26ab)ab x(4x3)3x(3x2)2x(2x2) 3 4 (3108)(7109) (ab2)(5a4) (3x)3(2x3y5) 7x38x4 6y2(2x2y2) (4x)24x3 (3a)2(3a)3 8a37a4 7y7y2 (6x3)(8x7) 3a(4a7b) (7x7y)(7x) 2 1 (ab24ab)ab2 2x(x4)x(x1)3x(4x2) 3 2 (9109)(7103) (9ab)(7a3) (4x)3(3x3y2) 8x23x4 7y4

2、(6x3y2) (3x)27x2 (2a)3(4a)2 7a29a 3y28y4 (8x3)(2x5) 5a(7a9b) (4x4y)(8x) 5 1 (ab24ab)ab2 2x(x1)x(4x2)3x(x2) 4 5 (6106)(2109) (3a4b)(4a4) (4x)2(2x3y5) 3x27x 8y2(3x3y4) (3x)33x4 (3a)3(4a)3 9a24a 6y29y3 (3x3)(7x1) 8a(8a3b) (3x8y)(3x) 5 1 (ab35ab)ab 3x(3x1)x(x1)4x(2x2) 4 5 (5107)(6109) (8ab)(3a) (2x)2(4x

3、2y3) 4x7x4 4y(8x3y2) (4x)27x3 (4a)3(2a)2 7a48a 5y6y3 (7x4)(9x7) 6a(7a7b) (5x9y)(4x) 4 1 (ab34ab)ab 3x(x1)4x(4x4)x(2x2) 5 4 (4107)(4109) (a2b)(6a) (3x)2(3x4y2) 7x38x 6y3(9x3y) (4x)25x3 (2a)3(2a)3 2a37a 4y26y (7x2)(8x1) 6a(6a5b) (6x6y)(6x) 5 1 (ab32ab)ab x(x2)2x(x1)x(x2) 6 5 (3102)(4107) (8a4b2)(8a) (

4、4x)3(4x3y5) 5x5x 9y(8xy) (3x)37x2 (2a)3(4a)2 2a6a2 6y36y3 (4x3)(7x1) 3a(3a7b) (2x2y)(7x) 5 1 (ab25ab)ab3 x(x1)x(x4)3x(3x4) 6 5 (8104)(6104) (a4b)(6a3) (2x)3(2x2y5) 3x9x2 7y4(5xy4) (2x)29x2 (4a)2(4a)3 7a32a 6y42y (x2)(8x2) 2a(8a7b) (2x8y)(9x) 4 1 (ab23ab)ab 4x(4x1)2x(2x3)x(3x3) 5 4 (9108)(8109) (6a3b

5、3)(3a3) (2x)3(3x4y3) 6x2x 5y3(6xy) (3x)25x3 (4a)3(4a)3 4a44a 5y3y3 (x3)(4x9) 8a(9a4b) (8x7y)(7x) 5 1 (ab26ab)ab3 4x(x4)x(2x1)x(2x3) 4 5 (9107)(7108) (2ab)(8a3) (2x)3(3x2y5) 8x7x 7y3(2xy2) (2x)36x2 (3a)2(2a)3 6a6a 3y49y (x3)(9x5) 6a(5a9b) (6x8y)(4x) 6 1 (ab26ab)ab2 x(x4)x(x4)3x(4x2) 5 6 (6104)(9102)

6、(4ab4)(8a2) (3x)3(4x3y3) 2x4x2 7y(8x3y) (3x)39x3 (3a)2(4a)2 9a4a3 6y8y4 (7x2)(4x4) 5a(6a5b) (5x7y)(9x) 5 1 (ab34ab)ab2 x(2x2)3x(4x1)x(x2) 6 5 (3108)(3108) (ab3)(4a4) (3x)2(3x3y2) 2x29x 5y(4x4y3) (4x)22x4 (3a)2(4a)2 3a9a 7y27y2 (9x4)(9x9) 7a(9a4b) (4x4y)(4x) 5 1 (ab34ab)ab2 x(4x1)x(4x1)3x(2x1) 4 5 (3

7、108)(9105) (7a4b)(4a2) (3x)2(3x3y3) 6x4x 2y3(2xy4) (2x)24x3 (4a)2(4a)3 9a5a3 9y7y (4x2)(7x4) 6a(6a5b) (5x2y)(9x) 5 1 (ab33ab)ab 2x(x1)x(4x4)4x(4x3) 4 5 (7109)(4104) (a4b2)(8a2) (4x)3(2x2y2) 3x32x 5y(4x2y) (3x)22x2 (3a)2(4a)3 8a27a3 3y25y (x3)(3x8) 8a(2a2b) (2x3y)(5x) 6 1 (ab23ab)ab 2x(x1)x(x4)x(4x1)

8、 5 6 (7109)(3104) (ab3)(9a) (2x)3(3x2y2) 2x5x3 7y(7xy) (2x)22x3 (3a)2(4a)3 4a2a 6y45y3 (4x4)(3x4) 2a(5a8b) (7x9y)(4x) 3 1 (ab32ab)ab2 x(2x3)x(x1)2x(x3) 4 3 (4108)(3104) (3ab2)(8a3) (2x)2(2x3y4) 9x23x 4y4(3x4y) (2x)28x4 (3a)2(2a)3 6a8a 5y9y2 (x2)(5x1) 8a(2a3b) (6x6y)(5x) 2 1 (ab33ab)ab2 2x(4x4)x(4x4)

9、x(x1) 3 2 (3103)(5103) (6ab4)(5a) (2x)2(3x4y5) 6x7x2 7y4(4x3y3) (2x)32x3 (3a)2(3a)3 3a22a 6y9y (8x4)(7x9) 8a(9a4b) (3x2y)(7x) 7 1 (ab36ab)ab3 2x(2x2)2x(x4)x(2x3) 6 7 (2108)(2105) (a4b)(2a) (4x)2(4x4y5) 7x44x4 4y3(6x4y4) (3x)38x3 (3a)2(3a)3 4a28a3 7y5y2 (2x4)(5x4) 6a(5a4b) (6x8y)(3x) 7 1 (ab23ab)ab x

10、(x3)2x(x4)x(x4) 6 7 (4103)(7109) (3a3b4)(8a3) (2x)3(2x2y2) 3x44x2 6y(9xy4) (3x)23x4 (2a)2(4a)2 4a3a4 2y32y (3x2)(3x5) 6a(2a9b) (7x3y)(4x) 3 1 (ab33ab)ab 4x(x4)x(2x2)x(2x1) 4 3 (6103)(8109) (ab3)(8a) (4x)2(3x2y3) 8x6x4 2y2(7x2y3) (4x)22x2 (4a)3(3a)3 6a22a 8y44y2 (7x3)(4x9) 8a(9a2b) (3x4y)(8x) 5 1 (ab

11、24ab)ab2 3x(x3)2x(x3)4x(x4) 6 5 (6105)(8105) (ab2)(9a3) (4x)3(4x3y3) 8x42x4 7y(8x3y3) (4x)37x4 (3a)3(2a)3 7a23a2 4y39y3 (x3)(5x8) 9a(7a5b) (7x9y)(2x) 3 1 (ab22ab)ab 2x(x1)x(4x2)x(x3) 4 3 (8105)(2104) (7a4b)(7a4) (3x)3(3x4y5) 5x5x2 8y2(5x4y) (4x)32x3 (4a)2(2a)3 2a6a 4y6y (2x4)(3x9) 9a(7a3b) (7x3y)(3x

12、) 4 1 (ab26ab)ab 3x(x1)x(4x2)x(x1) 3 4 (8109)(8106) (ab4)(7a4) (2x)2(3x2y5) 7x45x4 4y(8xy) (2x)25x2 (3a)2(4a)2 5a32a4 5y2y2 (x4)(4x3) 5a(2a9b) (3x6y)(8x) 6 1 (ab23ab)ab3 3x(3x4)x(4x2)x(x4) 5 6 (2105)(8104) (a2b4)(5a) (4x)2(3x4y5) 2x34x 7y(9x3y) (2x)23x2 (4a)2(4a)3 7a42a 2y8y2 (8x4)(2x9) 6a(6a2b) (2x

13、9y)(2x) 7 1 (ab22ab)ab x(2x2)3x(3x4)x(3x2) 6 7 (2105)(4103) (a2b3)(7a) (3x)3(2x3y3) 4x44x2 9y(3x4y) (2x)28x3 (4a)2(2a)2 6a43a 4y35y (8x2)(3x4) 2a(7a7b) (4x4y)(9x) 3 1 (ab34ab)ab x(x4)x(x1)4x(2x3) 4 3 (9102)(4106) (ab)(4a2) (2x)3(2x2y3) 2x32x4 5y4(5xy) (2x)22x3 (4a)2(4a)3 4a29a 2y2y (2x3)(3x5) 8a(3a3

14、b) (5x9y)(2x) 5 1 (ab32ab)ab2 x(x2)4x(x2)4x(3x1) 4 5 (8109)(4106) (4ab)(6a4) (2x)3(4x2y4) 6x4x 4y(5x4y) (4x)34x3 (4a)2(3a)2 4a3a 9y8y (x4)(4x5) 4a(3a3b) (5x5y)(6x) 2 1 (ab23ab)ab3 4x(x4)x(3x3)x(3x1) 3 2 (2109)(3105) (ab4)(3a) (2x)3(2x2y2) 8x4x2 4y2(8x4y) (4x)32x3 (2a)2(2a)3 9a2a 8y2y3 (9x4)(2x8) 9a(8a6b) (6x3y)(7x) 7 1 (ab25ab)ab 2x(x1)3x(3x4)x(4x3) 6 7 (2106)(7109) (ab)(4a) (3x)3(4x3y2) 7x39x 8y(2x4y4) (3x)36x4 (4a)3(3a)2 7a9a 4y8y (x2)(2x8) 6a(3a7b) (3x5y)(2x) 5 1 (ab33ab)ab3