人教版初二数学上册整式的乘法综合练习题精选7.docx

1、人教版初二数学上册整式的乘法综合练习题精选7 1 1 1 ()3()9()7 x9mx3m+1 xnx6n+1 3 3 3 (8x2)(6x1) 8a(5a5b) (6x8y)(8x) 4 1 (ab23ab)ab3 x(x4)x(x1)x(x2) 5 4 (2x3)(4x4) (x4y)(4xy) (3xy)(x2xyy2) (x3y)(x8y) (a2)2 (3ab)(ab) (x25)(3x8) (x23x3)(x2) (x1)(x2) (x5)(x2) (y1)(y3) (y2)(y1) y5y3 4a3b3(2a2b2) (bc)5(bc)3 (54x6y5)(9x5y4) 30x7

2、y85x2y3 (54103)(6102) 8a9b4c27a6b2 (14a3b8a)2a (81a563a263a)9a (16x3y48x3y2)8xy (3a)2 (3b)2 (5b)3 (xy3)3 (5x4)3 (xy)6 (4102)3 (5ab2)2 (106)4 (x6)5 (an)6 (a7)4 (104)6 (y3)9 (bn)8 (a6)4a2 xx8 s6s8 xx2 (4)5(4)3(4)3 x2nx5n+1 xmx3m+1 1 1 1 ()2()3()6 b4b5 x7x 7 7 7 (2)(2)2(2)8 aa5 tt8 1 1 1 ()()8()4 x3mx3

3、m-1 xnx2n+1 5 5 5 (x4)(7x5) 8a(2a4b) (3x4y)(6x) 3 1 (ab26ab)ab3 4x(x1)3x(3x1)3x(2x4) 4 3 (4x5)(x4) (xy)(4x6y) (3x3y)(x2xyy2) (x2y)(x7y) (a2)2 (ab)(4a6b) (x28)(4x8) (x2x1)(2x3) (x3)(x2) (x6)(x4) (y2)(y2) (y2)(y2) x7x5 14a6b9(7a3b3) (xy)9(xy)5 (18x9y6)(2x4y4) 81x5y79x3y5 (8107)(4102) 9a3b7c26a2b5 (45a

4、3b320a)5a (27a418a318a)9a (40xy330xy3)5xy (4a)2 (3b)2 (5b)3 (xy5)4 (5x4)3 (ab)9 (4102)3 (4ab4)2 (108)6 (y9)4 (ym)2 (y9)8 (107)4 (y6)4 (am)2 (a5)4a6 xx2 y8y3 y6y7 (3)3(3)6(3)6 x4nx6n-1 x5nx2n-1 1 1 1 ()()5()4 a6a8 s5s2 7 7 7 (9)3(9)7(9)9 b9b9 a9a6 1 1 1 ()()2()3 ymy8m+1 x5nx6n+1 2 2 2 (x3)(5x2) 4a(5a

5、6b) (5x3y)(9x) 3 1 (ab33ab)ab2 x(4x2)x(4x4)3x(2x1) 4 3 (x1)(x1) (x3y)(3x6y) (2xy)(x23xyy2) (xy)(3xy) (a1)2 (3a6b)(2ab) (4x29)(3x8) (4x2x3)(x1) (x2)(x3) (x6)(x3) (y4)(y2) (y2)(y3) x8x3 6a3b5(2a2b3) (pq)3(pq)2 (40x4y8)(5x2y6) 49x9y97x4y6 (28108)(7104) 6a8b6c42a7b4 (35a2b30a)5a (42a454a354a)6a (12xy18x

6、y3)3xy (7a)3 (6b)3 (5b)2 (xy5)4 (4x3)2 (xy)5 (2102)2 (5ab4)2 (107)2 (b4)5 (bn)5 (y9)9 (106)3 (a6)7 (xm)6 (a8)7a5 xx3 ss8 cc8 (1)(1)5(1)9 x4mx4m-1 x4mx2m-1 1 1 1 ()6()5()2 s8s a9a 2 2 2 (3)2(3)8(3)5 x6x9 zz5 1 1 1 ()2()5()7 x6nx7n-1 x5nx8n+1 2 2 2 (x2)(3x7) 8a(4a5b) (7x2y)(6x) 7 1 (ab22ab)ab x(3x3)x(

7、3x2)2x(x2) 6 7 (4x5)(3x6) (xy)(x6y) (x3y)(x23xyy2) (4x8y)(x2y) (3a4)2 (a6b)(ab) (3x26)(x6) (3x22x3)(4x3) (x4)(x1) (x2)(x6) (y4)(y2) (y3)(y1) a3a2 14a7b5(7a6b4) (x)9(x)8 (48x4y3)(8x3y2) 6x3y53x2y4 (12103)(6102) 4a7b5c45a2b4 (6a2b221a)3a (14a56a38a)2a (16x2y312xy2)2xy (8a)3 (2b)2 (2b)3 (xy4)2 (5x4)3 (

8、ab)8 (3104)3 (2ab3)2 (104)5 (b8)4 (xm)5 (b6)9 (102)7 (b6)6 (an)7 (a7)2a2 xx7 s5s5 s2s7 (10)(10)6(10)9 x5nx4n+1 xnx4n+1 1 1 1 ()8()8()7 y7y2 z5z4 7 7 7 (7)(7)5(7)5 y2y6 y7y3 1 1 1 ()5()5()2 x5mx9m-1 xnx7n+1 3 3 3 (x2)(5x3) 8a(4a7b) (8x7y)(2x) 6 1 (ab22ab)ab 4x(3x3)x(4x1)x(2x4) 5 6 (x5)(2x4) (xy)(x5y)

9、 (xy)(x22xyy2) (2x3y)(2xy) (3a3)2 (4a8b)(2a7b) (2x22)(x8) (3x23x1)(x3) (x1)(x1) (x1)(x3) (y3)(y1) (y1)(y1) y9y5 54a8b8(9a7b2) (ab)6(ab)2 (12x8y6)(4x4y4) 45x9y49x3y2 (56109)(8102) 6a8b5c47a4b2 (6a2b318a)2a (32a456a216a)8a (35x3y15x2y)5xy (3a)3 (4b)2 (3b)3 (xy3)2 (4x4)2 (ab)3 (4102)3 (3ab4)3 (108)3 (x

10、3)9 (xn)2 (x9)9 (107)5 (b5)8 (xn)2 (a6)9a5 x8x8 aa3 aa2 (3)(3)7(3)6 x3nx4n+1 x7nx6n-1 1 1 1 ()()3()6 y3y t9t 7 7 7 (1)4(1)9(1)7 ss5 a3a2 1 1 1 ()7()2()9 ymy7m+1 x6mx6m+1 7 7 7 (x4)(3x6) 7a(8a2b) (8x8y)(3x) 5 1 (ab35ab)ab3 3x(2x4)3x(x4)4x(3x1) 4 5 (x7)(3x9) (xy)(2xy) (x3y)(x2xyy2) (x9y)(4xy) (a4)2 (3

11、a3b)(3a8b) (x24)(3x1) (3x24x1)(2x1) (x3)(x3) (x6)(x2) (y1)(y3) (y2)(y1) y6y4 27a7b4(3a6b3) (pq)6(pq)4 (32x7y3)(8x2y2) 15x9y75x6y5 (30108)(6106) 5a4b4c35a3b2 (16a3b218a)2a (16a440a224a)8a (56x3y63x2y2)7xy (6a)3 (4b)3 (6b)2 (xy5)2 (3x3)2 (ab)3 (3103)3 (5ab2)2 (106)2 (b9)7 (an)4 (y2)7 (105)9 (x8)3 (bn)2 (a4)4a6 x8x6 b2b6 ss7 (1)(1)7(1)9 x9nx9n-1 xnx3n+1 1 1 1 ()5()8()6 c6c6 c5c 6 6 6 (9)6(9)3(9)7 aa9 z5z2 1 1 1 ()9()7()7 yny3n-1 x7mx2m+1 4 4 4 (7x4)(4x5) 4a(2a6b) (3x9y)(2x) 6 1 (ab34ab)ab2 x(x1)4x(3x3)3x(x2) 5 6 (x4)(x4) (3x3y)(2x9y) (xy)(x23xyy2) (x2y)(xy) (a2)2 (ab)(a4b) (x24)(2x8) (2x2x1)(3x