人教版八年级数学上册整式的乘法和因式分解练习题大全80.doc

1、一、计算。(3x2y)2(x3y)2(6a3b)(6ab)3x(x2)(x4)(x3y4)28.37.730032(2a)2b42ab2(x4y43x3y3z2)2xy22(x2)2(2x2)(4x5)(yz)2(2yz)(2yz)二、因式分解。4x249y2(pb)(4x4y)(pb)(2x3y)a212ay36y21616(qb)4(qb)2d325dx41一、计算。(3xy2)3(xy)3(5ab)(4ab)3x(x1)(x4)(6xy1)250.149.99962(8a)3b32a2b(x2y4x4y4z2)5xy24(x4)2(2x1)(4x2)4(yz)2(2yz)(2yz)二、因

2、式分解。x249y2(nb)(x6y)(nb)(5xy)a26ab9b21616(bn)4(bn)2d34d81x4256一、计算。(2xy2)3(x2y)3(4ab)(ab)2x(x1)(x3)(x6y3)260.159.94972(5a)2b412ab2(4x4y2x2y4z3)x2y4(x1)2(4x3)(2x3)(yz)2(4yz)(4yz)二、因式分解。64x2y2(dp)(4xy)(dp)(3x6y)a28ax16x22560(dp)36(dp)2d34d16x4256一、计算。(3x2y)3(xy)2(5ab)(5ab)3x(x2)(x2)(xy1)21.30.729972(9a

3、)3b312a2b2(3x2y46x2y2z2)5xy(x4)2(3x4)(3x2)(yz)2(2yz)(3yz)二、因式分解。x2y2(nb)(xy)(nb)(4x2y)a212ay36y23648(cn)16(cn)2a336ax4256一、计算。(2x2y2)3(x2y2)3(ab)(ab)2x(x1)(x1)(2xy3)210.19.94052(8a)3b214a2b2(x2y35x4y3z3)x2y3(x4)2(4x5)(4x2)2(yz)2(2yz)(3yz)二、因式分解。4x2y2(cq)(4x3y)(cq)(xy)a216ay64y2918(md)9(md)2c325cx41一

4、、计算。(2xy2)3(x2y2)3(5a6b)(3a5b)3x(x1)(x5)(3xy2)25.14.99962(6a)2b38ab2(5x4y36x3y3z2)x2y(x4)2(3x4)(3x5)4(yz)2(3yz)(4yz)二、因式分解。16x216y2(bm)(5xy)(bm)(4x5y)a26an9n22560(dp)36(dp)2a349ax481一、计算。(2xy2)2(x2y2)2(6ab)(a3b)3x(x2)(x5)(x4y4)22.11.97052(6a)3b48ab(4x2y43x3y2z4)x2y2(x2)2(4x2)(4x5)4(yz)2(4yz)(3yz)二、因

5、式分解。x2y2(ma)(x4y)(ma)(6x4y)a26ay9y22570(qa)49(qa)2c316cx41一、计算。(2xy3)3(xy)2(a5b)(4a3b)3x(x3)(x2)(xy4)220.319.78972(7a)2b212a2b2(6x2y3x4y3z2)x2y2(x1)2(2x3)(2x4)2(yz)2(2yz)(2yz)二、因式分解。25x2y2(cn)(2x2y)(cn)(4x3y)a210ax25x248(pa)4(pa)2d39d16x481一、计算。(2xy3)2(x3y)3(3a4b)(a2b)3x(x5)(x5)(x4y4)270.269.850052(

6、2a)2b416ab(6x4y29x3y3z2)3xy(x1)2(4x2)(4x2)2(yz)2(4yz)(3yz)二、因式分解。x2y2(na)(xy)(na)(6x5y)a28an16n2428(cp)49(cp)2a381ax4256一、计算。(2xy)2(xy)2(ab)(2a4b)3x(x2)(x3)(x5y3)29.28.870022(7a)2b412ab(4x3y28x4y2z4)xy24(x3)2(2x3)(3x3)(yz)2(2yz)(4yz)二、因式分解。x2y2(bp)(4xy)(bp)(xy)a210ax25x21624(aq)9(aq)2a316ax481一、计算。(

7、3x3y)2(x2y)2(a3b)(ab)3x(x3)(x2)(3x3y2)220.419.69982(3a)2b316ab2(3x3y38x4y3z4)xy24(x4)2(3x4)(2x3)(yz)2(3yz)(3yz)二、因式分解。x2y2(qc)(xy)(qc)(x4y)a214ab49b2424(pc)36(pc)2c336cx416一、计算。(3xy2)3(xy)2(6ab)(a3b)3x(x4)(x5)(xy1)23.32.770052(2a)3b418ab(3x3y38x4y2z4)xy2(x1)2(4x1)(2x4)(yz)2(2yz)(3yz)二、因式分解。x281y2(qd

8、)(x6y)(qd)(2xy)a28ab16b23660(pa)25(pa)2b336b81x481一、计算。(3x2y2)3(x3y)3(ab)(2ab)2x(x1)(x1)(2xy3)290.489.680012(4a)2b36a2b2(x4y2x4y3z3)4xy2(x1)2(3x5)(2x2)4(yz)2(4yz)(3yz)二、因式分解。x216y2(bp)(3x6y)(bp)(x2y)a28an16n248(dq)4(dq)2a349a81x416一、计算。(2x2y)2(xy3)3(2a6b)(5ab)2x(x4)(x2)(x2y3)210.29.87962(6a)3b320a2b

9、(x3y45x2y2z3)x2y23(x2)2(2x4)(2x4)(yz)2(4yz)(3yz)二、因式分解。100x249y2(cn)(3x6y)(cn)(xy)a26am9m23660(nd)25(nd)2b39b16x4256一、计算。(3xy)3(x3y2)3(3a2b)(ab)2x(x2)(x3)(4x5y2)26.25.86022(2a)3b22a2b2(4x3y2x3y4z3)xy3(x2)2(4x5)(3x4)3(yz)2(2yz)(4yz)二、因式分解。16x2y2(am)(6x6y)(am)(4xy)a28an16n22530(md)9(md)2d364dx41一、计算。(

10、3xy)2(x2y)3(4a2b)(3a4b)3x(x4)(x4)(x4y4)24.33.77992(8a)2b46a2b2(9x2y4x3y4z2)3x2y22(x2)2(2x4)(2x4)(yz)2(2yz)(3yz)二、因式分解。x2y2(dm)(5xy)(dm)(xy)a26am9m2918(cp)9(cp)2d39dx41一、计算。(2xy)2(xy3)2(3ab)(a5b)3x(x5)(x3)(x4y1)230.129.990012(5a)2b32ab2(x3y2x3y2z3)9xy2(x3)2(2x4)(2x2)(yz)2(4yz)(2yz)二、因式分解。100x249y2(dp

11、)(6x2y)(dp)(x4y)a212ay36y22520(an)4(an)2c349cx4256一、计算。(3x2y)3(xy)2(a6b)(ab)2x(x5)(x1)(xy4)290.289.850022(4a)3b214a2b(x2y22x2y2z3)x2y(x4)2(2x2)(3x5)2(yz)2(3yz)(4yz)二、因式分解。x2y2(aq)(x3y)(aq)(xy)a216ay64y2912(md)4(md)2c39cx416一、计算。(2x3y)3(x2y)2(ab)(6ab)3x(x4)(x5)(xy3)230.329.749992(6a)2b42a2b(x2y2x3y2z

12、4)x2y(x4)2(2x1)(2x1)(yz)2(4yz)(2yz)二、因式分解。16x2y2(am)(x6y)(am)(3x3y)a212an36n22520(qb)4(qb)2d34d16x481一、计算。(3xy3)2(xy2)2(6a5b)(a3b)3x(x2)(x5)(x6y1)27.16.960002(6a)2b312ab(x2y29x3y3z2)5xy22(x3)2(2x3)(4x1)4(yz)2(4yz)(4yz)二、因式分解。x2y2(aq)(2x4y)(aq)(x3y)a214an49n23624(pb)4(pb)2a349ax416一、计算。(2xy)3(x2y)2(a

13、6b)(ab)2x(x5)(x3)(6x2y3)28.47.69962(7a)3b32a2b(8x3y2x2y3z3)9x2y(x1)2(3x3)(4x2)(yz)2(2yz)(4yz)二、因式分解。x2100y2(an)(6x3y)(an)(x3y)a26am9m2424(mb)36(mb)2a364a81x41一、计算。(2x3y)3(xy3)3(ab)(3a5b)3x(x5)(x3)(x4y3)28.17.919952(6a)2b46a2b2(x3y3x3y3z3)x2y(x3)2(3x1)(2x2)(yz)2(3yz)(2yz)二、因式分解。x2100y2(dm)(6xy)(dm)(3

14、x6y)a214ab49b2918(pc)9(pc)2c3100c81x481一、计算。(2xy3)2(xy2)3(2ab)(5a6b)3x(x2)(x5)(5xy1)27.46.6992(3a)2b36ab2(x2y28x3y4z2)x2y23(x4)2(3x2)(2x3)(yz)2(2yz)(2yz)二、因式分解。16x2y2(mb)(6x5y)(mb)(xy)a214ay49y2924(md)16(md)2d349dx416一、计算。(2xy3)3(xy2)2(ab)(6a5b)3x(x5)(x1)(x3y4)22.41.68022(3a)2b46ab2(x4y3x2y4z3)6x2y2(x2)2(3x5)(4x2)(yz)2(3yz)(2yz)二、因式分解。9x2y2(bn)(x5y)(bn)(2x5y)a24am4m22530(an)9(an)2b364bx416一、计算。(2xy3)2(x2y)3(6ab)(ab)3x(x2)(x2)(x6y4)290.389.739952(8a)2b36ab(8x3y2x2y3z4)x2y2(x1)2(3x4)(3x5)3(yz)2(4yz)(4yz)二、因式分解。4x249y2(dn)(x4y)(dn)(3xy)a216an64n2424(ma)36(ma)2c3100c16x41