人教版初中八年级数学上册因式分解练习题大全91.docx

1、人教版初中八年级数学上册因式分解练习题大全9155a360ab 18ab3c90bc20p(x9)4p(x9) 6(x9)m(x9)169a2 36x24y216n2121 (4xy)2(4x7y)218m16m2 (mn)210m(mn)25m29m260m100 36a212a(ab)(ab)290a60a2b 10abc40b6p(y2)40p(y2) 6(y2)m(y2)169y2 12x275y20.25n2324 (xy)2(xy)2100200y100y2 (mn)210m(mn)25m236y224y4 9a26a(mn)(mn)290a420a4 8ab2c90b4c8q(x

2、3)16p(x3) 4(x3)m(x3)16100a2 32x28y20.64a236 (x3y)2(6xy)2930b25b2 (ab)210m(ab)25m29y260y100 36a212a(ab)(ab)260a430a2b 20ab3c90b8q(y3)20q(y3) 8(y3)m(y3)161a2 8x218y20.04m2225 (x4y)2(x7y)22560n36n2 (xy)26m(xy)9m24b224b36 25a210a(ab)(ab)265a10a3 20abc40b14p(x1)12q(x1) 4(x1)m(x1)36100a2 64x216y29a2400 (x

3、3y)2(xy)23660y25y2 (xy)212m(xy)36m225a220a4 9a26a(mn)(mn)25a20a2b 2a4bc40b38p(9a)32q(9a) 6(9a)m(9a)4981a2 32x22y225a236 (4xy)2(xy)2118y81y2 (mn)26m(mn)9m216b264b64 16a28a(xy)(xy)245a460a3b 2ab2c90b8p(2a)20q(2a) 8(2a)m(2a)916m2 18x250y236y2400 (xy)2(x10y)2100160x64x2 (xy)28m(xy)16m264m296m36 9a26a(ab

4、)(ab)290a50a4 18a4bc70b4c12q(x4)20p(x4) 2(x4)m(x4)416x2 32x232y281m2196 (x4y)2(x8y)264160m100m2 (mn)210m(mn)25m24x228x49 4a24a(mn)(mn)215a3100ab 4a3b3c40bc16p(x8)36p(x8) 4(x8)m(x8)4916n2 27x248y20.04a2256 (9x2y)2(x8y)2114x49x2 (xy)28m(xy)16m2100b2180b81 16a28a(xy)(xy)275a30a4 6a4b2c100b220q(x1)8p(x1

5、) 6(x1)m(x1)10064b2 75x275y20.36x2225 (7x4y)2(4xy)2100200a100a2 (xy)24m(xy)4m249y256y16 16a28a(xy)(xy)235a270a3b 4a2b3c10b16p(3a)24p(3a) 6(3a)m(3a)10025a2 3x227y20.09y2144 (x2y)2(5xy)281144y64y2 (xy)210m(xy)25m29n218n9 4a24a(xy)(xy)260a50a2b 2abc100b12q(2a)8p(2a) 2(2a)m(2a)916y2 16x216y225y225 (xy)2

6、(xy)22520a4a2 (ab)28m(ab)16m236x212x1 25a210a(mn)(mn)215a10ab 8abc20bc2q(9b)40q(9b) 6(9b)m(9b)1009a2 2x232y29n249 (4xy)2(6x8y)22580b64b2 (xy)28m(xy)16m281a2162a81 25a210a(xy)(xy)270a100a4 6a2b2c100b2c20p(1a)12p(1a) 6(1a)m(1a)81100b2 64x24y20.49y29 (xy)2(2xy)249140b100b2 (ab)210m(ab)25m216b240b25 16a

7、28a(xy)(xy)260a10a 6a4bc30b18q(y5)36p(y5) 4(y5)m(y5)1616y2 2x218y216n2144 (x5y)2(7xy)264160m100m2 (xy)28m(xy)16m225m280m64 9a26a(mn)(mn)280a390ab 18a3bc50b2p(7a)4q(7a) 8(7a)m(7a)10081m2 18x28y264b2196 (4x6y)2(2x7y)2936m36m2 (xy)24m(xy)4m29a242a49 4a24a(xy)(xy)285a4100a3b 12ab3c90b320q(y1)20p(y1) 8(y

8、1)m(y1)491b2 50x22y225x216 (xy)2(x8y)24984b36b2 (ab)28m(ab)16m249b298b49 36a212a(xy)(xy)215a360a4 20a3bc100b420q(x2)4q(x2) 6(x2)m(x2)499x2 27x275y20.04n249 (9x3y)2(x10y)2412n9n2 (xy)210m(xy)25m249a284a36 36a212a(xy)(xy)235a80a3 12abc80bc20q(y3)32p(y3) 6(y3)m(y3)10016m2 100x216y249x29 (xy)2(xy)23624x

9、4x2 (mn)28m(mn)16m281b2126b49 4a24a(mn)(mn)240a220a 10abc30b414p(y9)40p(y9) 8(y9)m(y9)2536a2 2x28y20.64n225 (5xy)2(xy)225100m100m2 (ab)24m(ab)4m225a270a49 36a212a(ab)(ab)215a20a 14a2b3c70b416q(7b)20p(7b) 2(7b)m(7b)1681m2 64x264y225m236 (6xy)2(x10y)2918n9n2 (mn)28m(mn)16m281y2162y81 16a28a(mn)(mn)275

10、a460ab 14abc40b14q(x1)36q(x1) 2(x1)m(x1)116n2 12x275y20.09n2324 (9xy)2(8xy)2100160y64y2 (mn)210m(mn)25m281m2144m64 25a210a(mn)(mn)235a30a 18a3bc50b20q(y1)28p(y1) 2(y1)m(y1)6425b2 50x22y20.25b216 (9xy)2(4x10y)210060x9x2 (mn)24m(mn)4m249x2140x100 36a212a(xy)(xy)255a380ab 14ab2c10bc8q(x2)36p(x2) 8(x2)m

11、(x2)481n2 27x227y20.25x216 (xy)2(6xy)2110n25n2 (mn)24m(mn)4m249y242y9 4a24a(ab)(ab)290a330ab 8ab2c20b2c10q(x8)28p(x8) 6(x8)m(x8)925b2 16x236y24m216 (6x2y)2(xy)2100100b25b2 (xy)212m(xy)36m249n2112n64 16a28a(mn)(mn)265a40a 12a4bc20bc14q(y8)40p(y8) 2(y8)m(y8)19n2 12x227y216m2324 (xy)2(3x7y)2924a16a2 (m

12、n)24m(mn)4m29a254a81 9a26a(xy)(xy)220a270a 2a4bc70b3c8p(y3)16p(y3) 2(y3)m(y3)499y2 50x218y20.49n21 (4xy)2(9xy)2116b64b2 (xy)210m(xy)25m24y224y36 16a28a(mn)(mn)295a270ab 6ab2c40b3c10p(y1)40q(y1) 8(y1)m(y1)161b2 48x23y20.36a2361 (8x3y)2(x8y)28190b25b2 (ab)28m(ab)16m281y2144y64 36a212a(mn)(mn)245a80a 1

13、8ab2c100bc2q(3a)40p(3a) 4(3a)m(3a)2581m2 50x218y20.25a2289 (2xy)2(2xy)2954a81a2 (mn)28m(mn)16m216n272n81 16a28a(mn)(mn)235a430a3 14ab3c90b12q(6b)32p(6b) 4(6b)m(6b)361x2 100x24y20.09m225 (9xy)2(9xy)26480a25a2 (xy)212m(xy)36m281b2144b64 16a28a(ab)(ab)295a10ab 16a2b2c100bc6p(x3)12q(x3) 6(x3)m(x3)49a2 1

14、6x264y20.36a21 (xy)2(5x7y)210060a9a2 (xy)28m(xy)16m29y236y36 16a28a(xy)(xy)220a330ab 2a2bc90b26q(8a)28p(8a) 4(8a)m(8a)811y2 18x28y20.36y264 (4xy)2(xy)2440x100x2 (ab)28m(ab)16m264b280b25 36a212a(ab)(ab)275a40a2 18ab3c60b2p(x9)32p(x9) 4(x9)m(x9)6416m2 4x264y20.49a2289 (5xy)2(7xy)236108b81b2 (ab)210m(a

15、b)25m24m24m1 36a212a(ab)(ab)280a280a 8ab2c80bc10p(x3)28q(x3) 2(x3)m(x3)9100x2 64x236y249a281 (xy)2(9xy)281162m81m2 (ab)210m(ab)25m29m218m9 4a24a(ab)(ab)2100a60a2 18abc30bc16p(6a)12p(6a) 4(6a)m(6a)3681n2 75x212y20.49y29 (x5y)2(xy)22550x25x2 (ab)26m(ab)9m24x236x81 4a24a(ab)(ab)270a360ab 6a2bc90b420p(y

16、5)24p(y5) 8(y5)m(y5)2581n2 18x250y24a2361 (x2y)2(x7y)26496a36a2 (mn)210m(mn)25m2100m280m16 9a26a(mn)(mn)290a460a3b 18a3bc70bc10q(y5)40p(y5) 4(y5)m(y5)254m2 3x275y249x2256 (6xy)2(xy)2924y16y2 (ab)212m(ab)36m249m270m25 25a210a(xy)(xy)245a30a4 18a2b2c20b14p(8a)32p(8a) 4(8a)m(8a)916m2 4x24y20.36y2121 (7

17、x2y)2(x9y)216x9x2 (xy)212m(xy)36m2100b2180b81 9a26a(mn)(mn)265a240a3b 18a4bc100b3c2p(y5)32q(y5) 2(y5)m(y5)8136x2 32x22y20.36y225 (x2y)2(8x9y)281108n36n2 (xy)28m(xy)16m29x224x16 36a212a(mn)(mn)250a50a2b 2ab2c80bc18p(4a)20q(4a) 6(4a)m(4a)464n2 48x275y20.64y2196 (xy)2(5x10y)22530m9m2 (ab)26m(ab)9m281b2

18、126b49 36a212a(ab)(ab)245a50ab 8ab3c70b2c14p(9a)36q(9a) 4(9a)m(9a)10064x2 3x227y20.36m2225 (x4y)2(x10y)22540n16n2 (mn)26m(mn)9m24x216x16 4a24a(ab)(ab)230a10a4 4ab3c50b4c4q(3b)32p(3b) 8(3b)m(3b)1616x2 16x24y20.49y2100 (9x4y)2(xy)21656x49x2 (ab)212m(ab)36m2100y2100y25 4a24a(xy)(xy)290a70a4b 18a3bc90b2

19、0p(4b)20p(4b) 2(4b)m(4b)25100m2 3x275y281x2400 (xy)2(2xy)249126m81m2 (mn)28m(mn)16m264a2128a64 4a24a(ab)(ab)255a30ab 10abc10b6q(y7)40p(y7) 8(y7)m(y7)464x2 8x22y264x2196 (xy)2(9xy)21664y64y2 (xy)28m(xy)16m225b290b81 36a212a(mn)(mn)225a50a 12a4b3c70b3c16p(9a)16p(9a) 2(9a)m(9a)464x2 50x218y29y236 (xy)2

20、(x10y)26432x4x2 (mn)28m(mn)16m281b254b9 16a28a(xy)(xy)220a20a4 20ab2c20bc14p(x4)12q(x4) 6(x4)m(x4)4936x2 32x22y249m236 (xy)2(6x8y)21624x9x2 (ab)28m(ab)16m281n2162n81 36a212a(mn)(mn)260a90ab 14abc80bc14q(x4)36p(x4) 4(x4)m(x4)254b2 36x236y20.04m2100 (x4y)2(xy)23672m36m2 (mn)24m(mn)4m249m2140m100 4a24a

21、(mn)(mn)240a450a4b 4abc30bc16q(5b)32p(5b) 2(5b)m(5b)916y2 48x212y249x2400 (6x4y)2(9x7y)2924b16b2 (xy)26m(xy)9m236y284y49 9a26a(mn)(mn)265a30a2 12ab3c40bc4p(6b)36p(6b) 2(6b)m(6b)4981b2 3x275y20.25x21 (8xy)2(2x10y)2912n4n2 (xy)210m(xy)25m24y240y100 36a212a(xy)(xy)25a4100a3 10ab2c70bc20p(x9)24q(x9) 2(x9)m(x9)19y2 3x23y216b2144 (xy)2(xy)236108b81b2 (xy)212m(xy)36m225y230y9 4a24a(ab)(ab)2