初中八年级数学上册因式分解练习题大全53.docx

1、初中八年级数学上册因式分解练习题大全5370a4100a 12a3b2c30b316p(1b)28q(1b) 6(1b)m(1b)8136a2 75x212y249y2196 (xy)2(x9y)281108x36x2 (ab)26m(ab)9m216n240n25 16a28a(mn)(mn)2x210x16 x27x86x231x40 3681n265a20a3 16a2b2c90bc20p(x7)36p(x7) 4(x7)m(x7)2581a2 32x22y20.04n29 (xy)2(2x9y)216x9x2 (ab)212m(ab)36m216y280y100 36a212a(xy)

2、(xy)2x213x36 x27x88x238x9 99a290a90ab 16abc80b3c20p(x7)32q(x7) 6(x7)m(x7)164m2 27x212y264b2169 (x3y)2(x8y)26448x9x2 (xy)210m(xy)25m236m272m36 9a26a(ab)(ab)2x213x40 x23x4020x247x21 4925m285a3100ab 18a2b2c70bc2q(8a)12p(8a) 2(8a)m(8a)4981m2 2x232y20.04m2196 (x6y)2(xy)2100180n81n2 (ab)212m(ab)36m216n216

3、n4 9a26a(mn)(mn)2x25x6 x24x328x250x50 6436n275a490ab 18ab3c30b10q(y1)36p(y1) 6(y1)m(y1)2525b2 36x2100y20.81n2289 (xy)2(xy)28136m4m2 (mn)28m(mn)16m216b28b1 4a24a(xy)(xy)2x24x3 x25x245x216x3 1636b250a100a3b 10abc20b3c2q(2a)36q(2a) 6(2a)m(2a)8149n2 32x28y216n225 (9x2y)2(7x7y)21632y16y2 (ab)28m(ab)16m21

4、6y264y64 9a26a(xy)(xy)2x212x35 x24x458x244x20 494b265a220a3 12a4bc30b420p(5a)12p(5a) 2(5a)m(5a)1636m2 50x22y20.36y2256 (x6y)2(x10y)28172b16b2 (mn)210m(mn)25m249a2140a100 25a210a(xy)(xy)2x210x24 x24x128x218x7 99a225a270a 16abc40bc8q(9b)16q(9b) 2(9b)m(9b)8136b2 36x236y236n2256 (7x4y)2(xy)214y4y2 (xy)2

5、4m(xy)4m225b210b1 16a28a(mn)(mn)2x213x42 x25x1416x256x48 6464b290a90a3 14abc30bc20p(1b)20p(1b) 8(1b)m(1b)10064y2 48x248y249a281 (xy)2(6xy)2100120b36b2 (ab)26m(ab)9m225b230b9 16a28a(xy)(xy)2x213x36 x27x302x226x72 10016x250a480a2b 12a4bc70b42q(x4)20p(x4) 8(x4)m(x4)125b2 100x24y20.64y2400 (x6y)2(x9y)21

6、0040a4a2 (xy)212m(xy)36m2100a240a4 16a28a(xy)(xy)2x210x24 x29x105x240x60 16100a275a80a3b 4a2b3c30b18q(3b)4p(3b) 6(3b)m(3b)19n2 100x216y264n225 (x2y)2(4x8y)28190b25b2 (ab)26m(ab)9m2100a2180a81 4a24a(xy)(xy)2x28x15 x22x249x233x30 369b240a90ab 8ab2c10b4c10q(1b)8q(1b) 4(1b)m(1b)81100y2 64x2100y20.81m24

7、(xy)2(7x8y)28136a4a2 (mn)26m(mn)9m236y272y36 9a26a(xy)(xy)2x26x9 x25x5020x251x27 19a25a40a3b 4a3b2c20bc8q(y9)36q(y9) 8(y9)m(y9)981y2 4x236y249m2400 (2x6y)2(4xy)28172y16y2 (ab)24m(ab)4m249a2126a81 4a24a(mn)(mn)2x210x9 x29x104x236x32 100100m275a20a 12abc30bc16q(x6)12p(x6) 4(x6)m(x6)2525a2 32x22y20.81a

8、21 (6xy)2(xy)2954x81x2 (mn)26m(mn)9m29b230b25 25a210a(mn)(mn)2x213x42 x23x283x234x40 6416b245a430a 14a3bc40b414p(3a)20q(3a) 6(3a)m(3a)36100x2 12x23y225y216 (x3y)2(x10y)2924b16b2 (mn)28m(mn)16m236n296n64 9a26a(ab)(ab)2x211x18 x28x205x28x3 4925m280a470a3 8a3b2c100b2q(x5)20p(x5) 4(x5)m(x5)136x2 64x216y

9、20.25b24 (x2y)2(x9y)28172m16m2 (xy)26m(xy)9m216x256x49 9a26a(xy)(xy)2x29x14 x25x69x242x48 369b270a70a2 18ab2c100b4c4p(y4)12p(y4) 4(y4)m(y4)1636n2 16x2100y249b2225 (xy)2(7x10y)210060m9m2 (mn)28m(mn)16m225a250a25 4a24a(xy)(xy)2x27x12 x24x123x235x50 164x235a350ab 8a2b2c40b4c10p(x1)4p(x1) 8(x1)m(x1)814y

10、2 100x24y20.36m236 (x2y)2(5xy)281126b49b2 (mn)26m(mn)9m24x212x9 36a212a(xy)(xy)2x29x18 x23x184x216x15 4100n235a380a3b 14a3bc10b2c8p(y3)24p(y3) 8(y3)m(y3)4100y2 4x216y20.64b2361 (xy)2(7x9y)2912b4b2 (mn)210m(mn)25m216b248b36 16a28a(mn)(mn)2x23x2 x24x324x234x60 936x250a100a 2abc80b8p(1a)24p(1a) 2(1a)m(

11、1a)9100a2 36x264y225x2256 (xy)2(2xy)21616y4y2 (mn)212m(mn)36m264x216x1 36a212a(ab)(ab)2x211x24 x21x305x225x30 25100a250a30a 12ab3c30bc4p(3a)20q(3a) 4(3a)m(3a)3649n2 3x275y281b21 (x6y)2(2x9y)22560n36n2 (mn)24m(mn)4m29b26b1 36a212a(ab)(ab)2x212x27 x22x248x220x12 936y215a2100a 20a2b3c10b220p(5b)8q(5b)

12、6(5b)m(5b)64100a2 32x218y216m2361 (4xy)2(2x8y)2954n81n2 (xy)212m(xy)36m236x296x64 9a26a(mn)(mn)2x213x40 x22x2410x211x3 2564m260a100ab 6a2b2c30b4q(4b)20p(4b) 4(4b)m(4b)3616n2 18x22y20.09y236 (8xy)2(xy)24942b9b2 (mn)26m(mn)9m236x248x16 25a210a(ab)(ab)2x26x8 x23x1815x260x45 19b225a30a 18a4bc40b3c12q(y9

13、)4p(y9) 6(y9)m(y9)19m2 12x275y20.16a24 (6x3y)2(7x10y)281108m36m2 (xy)210m(xy)25m225y210y1 9a26a(mn)(mn)2x210x24 x27x302x218x40 164x290a350ab 12abc100b218q(7a)12q(7a) 6(7a)m(7a)254b2 50x28y20.04a281 (xy)2(xy)21632b16b2 (ab)26m(ab)9m236x248x16 36a212a(xy)(xy)2x26x5 x29x102x222x56 164b2100a80a2b 18ab3c

14、40bc20p(3a)28p(3a) 4(3a)m(3a)925m2 4x2100y20.49m281 (8x3y)2(x8y)2100200m100m2 (ab)210m(ab)25m225a270a49 25a210a(ab)(ab)2x27x12 x23x4010x252x48 3664b240a340ab 8a2b2c60b16p(y8)24q(y8) 8(y8)m(y8)369n2 12x23y264n236 (7x4y)2(8xy)23624x4x2 (mn)210m(mn)25m225n210n1 9a26a(ab)(ab)2x27x6 x22x356x240x64 1100y2

15、75a80a3b 14a3b3c10b3c8q(4a)8q(4a) 4(4a)m(4a)1625n2 2x28y20.49x29 (9xy)2(x9y)24956n16n2 (mn)26m(mn)9m2100m220m1 9a26a(xy)(xy)2x27x12 x24x3215x252x45 3649y235a90a2 14a3bc100bc18p(y4)4q(y4) 4(y4)m(y4)10081n2 36x264y281m2361 (5x3y)2(6x8y)281144n64n2 (ab)28m(ab)16m249b242b9 25a210a(mn)(mn)2x213x36 x27x85

16、x210x5 1616a255a90a4 4a3b2c40b2c16q(2a)40q(2a) 2(2a)m(2a)1625n2 36x216y236b29 (x3y)2(x9y)281108n36n2 (xy)210m(xy)25m281n2180n100 36a212a(mn)(mn)2x25x4 x23x285x252x63 364x265a90a2 10ab3c80b14q(2a)20q(2a) 2(2a)m(2a)949x2 8x22y20.09y2361 (2xy)2(xy)2936a36a2 (xy)26m(xy)9m281x2180x100 36a212a(xy)(xy)2x21

17、1x24 x24x4510x257x54 164n295a70a3 4a4b3c90b2c6q(y1)28q(y1) 8(y1)m(y1)949n2 100x24y20.16x2121 (8x3y)2(6xy)281108b36b2 (ab)212m(ab)36m264a2112a49 9a26a(mn)(mn)2x210x9 x24x2116x240x16 81100m25a10a2b 4a2b3c20b12q(1b)40q(1b) 8(1b)m(1b)1636n2 64x216y281n2324 (7xy)2(8xy)236108a81a2 (ab)24m(ab)4m225n270n49

18、36a212a(xy)(xy)2x29x20 x23x402x218x16 259y255a30a4 14a3b2c20b6p(x4)36p(x4) 8(x4)m(x4)369b2 16x24y20.09x249 (4xy)2(8xy)26480m25m2 (ab)24m(ab)4m264m2112m49 9a26a(xy)(xy)2x216x64 x29x103x226x35 10036x2100a410a 18ab2c80bc6p(3a)20q(3a) 4(3a)m(3a)8116y2 12x23y20.25n21 (7x5y)2(x10y)23696y64y2 (xy)210m(xy)2

19、5m236n212n1 9a26a(xy)(xy)2x215x54 x23x286x238x56 94b25a410a 18a4bc90b318p(x6)16q(x6) 2(x6)m(x6)436n2 50x232y20.81n2196 (8xy)2(7xy)23636m9m2 (xy)212m(xy)36m281m236m4 4a24a(ab)(ab)2x214x45 x22x2410x228x16 8149x235a40ab 8ab3c50bc14q(1b)20p(1b) 8(1b)m(1b)2516b2 8x22y20.64a21 (7x6y)2(5xy)2960y100y2 (ab)24m(ab)4m264a2112a49 25a210a(xy)(xy)2x29x20 x25x2412x240x28 2549a2100a330a3 2ab2c100b4q(4b)24q(4b) 4(4b)m(4b)8181n2 2x232y20.09y2400 (x4y)2(8xy)2