人教版初中八年级数学上册因式分解练习题大全49.docx

1、人教版初中八年级数学上册因式分解练习题大全4925a2100a 8ab2c60bc20q(4b)28q(4b) 2(4b)m(4b)161b2 18x22y281n2361 (xy)2(x10y)2436a81a2 (xy)210m(xy)25m29a218a9 9a26a(xy)(xy)25a40a3 10abc60b8q(5a)40p(5a) 4(5a)m(5a)169b2 36x2100y236x236 (4xy)2(7xy)23636a9a2 (mn)212m(mn)36m2100m220m1 4a24a(mn)(mn)295a390a4b 12ab3c10bc20q(5a)40p(5

2、a) 8(5a)m(5a)4100y2 16x216y20.16a29 (7xy)2(xy)216m9m2 (mn)210m(mn)25m2100n260n9 36a212a(mn)(mn)235a240ab 20a3bc40b2c10q(y3)32p(y3) 8(y3)m(y3)164y2 50x218y216n24 (2xy)2(xy)210060a9a2 (xy)26m(xy)9m264n264n16 25a210a(mn)(mn)255a310ab 8ab2c70bc6p(1a)20q(1a) 2(1a)m(1a)16100n2 36x264y20.16a2121 (xy)2(6x10

3、y)24942y9y2 (mn)26m(mn)9m2100b2160b64 25a210a(xy)(xy)280a430a4b 14a4b3c40b48q(3a)36p(3a) 6(3a)m(3a)161n2 64x24y216a2225 (3x2y)2(2x7y)281108m36m2 (ab)210m(ab)25m264m2128m64 9a26a(ab)(ab)280a90a 14a4b2c70b2c14q(y7)4q(y7) 8(y7)m(y7)149a2 50x28y20.09y2225 (x2y)2(x10y)281162a81a2 (mn)212m(mn)36m24y220y25

4、 16a28a(xy)(xy)285a410a4 20a4b3c20b312p(5b)36p(5b) 6(5b)m(5b)6425n2 100x264y20.36b2121 (x5y)2(5x9y)2432m64m2 (ab)212m(ab)36m24x28x4 36a212a(ab)(ab)235a20a 14a2b2c30b16p(1a)36q(1a) 8(1a)m(1a)1625a2 16x2100y20.09y225 (xy)2(x10y)2440b100b2 (xy)26m(xy)9m29b212b4 9a26a(mn)(mn)25a280a3b 18a4b3c20b20p(x8)2

5、4p(x8) 6(x8)m(x8)464n2 3x212y20.09b264 (xy)2(6xy)21664a64a2 (xy)26m(xy)9m29y26y1 25a210a(mn)(mn)280a90ab 8abc100b3c16p(2a)36q(2a) 2(2a)m(2a)6481b2 12x227y249n249 (9x6y)2(x9y)26448x9x2 (ab)212m(ab)36m29a230a25 25a210a(mn)(mn)240a350a4 14ab3c20bc6p(y9)28p(y9) 8(y9)m(y9)41a2 48x227y20.81m249 (8xy)2(7x9

6、y)2918y9y2 (xy)26m(xy)9m264n2128n64 9a26a(xy)(xy)265a290a4 4ab3c10b6q(x4)12q(x4) 4(x4)m(x4)2549b2 50x232y20.81m2225 (4xy)2(xy)28136a4a2 (xy)210m(xy)25m24b236b81 36a212a(ab)(ab)225a260a4 16a3bc100b16p(6a)32p(6a) 6(6a)m(6a)2564a2 32x22y264m225 (3xy)2(xy)2912b4b2 (xy)24m(xy)4m281n272n16 9a26a(xy)(xy)28

7、5a10a3b 18abc70b6q(6b)20p(6b) 6(6b)m(6b)4925m2 50x218y20.04n2361 (6xy)2(x7y)249112n64n2 (ab)24m(ab)4m225y270y49 9a26a(xy)(xy)295a470a2 14ab3c90b2c4q(8b)16p(8b) 8(8b)m(8b)3616a2 3x248y216m236 (2x4y)2(x10y)24942x9x2 (xy)210m(xy)25m29a254a81 25a210a(xy)(xy)235a50ab 16ab2c40bc18p(1a)40q(1a) 8(1a)m(1a)25

8、81b2 2x28y24x2196 (xy)2(6xy)24942x9x2 (xy)210m(xy)25m225a210a1 4a24a(mn)(mn)235a10a4b 4a3bc60bc14p(x8)8q(x8) 4(x8)m(x8)181n2 2x250y20.36y216 (5xy)2(xy)210040x4x2 (xy)28m(xy)16m225b290b81 25a210a(ab)(ab)295a3100a2b 12a2b3c90b416p(y1)24q(y1) 8(y1)m(y1)3636a2 4x264y24x2144 (4xy)2(xy)264112n49n2 (xy)28m

9、(xy)16m216a256a49 16a28a(ab)(ab)230a40a 6abc30b310q(7b)24p(7b) 6(7b)m(7b)1681n2 27x248y24x2169 (9x6y)2(3x7y)216a9a2 (mn)28m(mn)16m249x242x9 9a26a(xy)(xy)255a100a 6a2b2c10bc20p(6b)12p(6b) 6(6b)m(6b)251a2 27x248y20.64m2196 (8xy)2(3xy)21672n81n2 (xy)26m(xy)9m225b230b9 25a210a(ab)(ab)280a320ab 14a3bc40b

10、42q(y3)28q(y3) 4(y3)m(y3)1636y2 8x232y20.09x2144 (9x6y)2(2x7y)28190a25a2 (ab)210m(ab)25m264x296x36 4a24a(ab)(ab)210a210a3 14abc10b3c10q(2b)24p(2b) 2(2b)m(2b)181n2 75x212y20.25b249 (6xy)2(3x9y)281126y49y2 (mn)210m(mn)25m236a296a64 9a26a(xy)(xy)240a320a4b 2abc40b4c10q(1b)24q(1b) 2(1b)m(1b)19n2 64x216y

11、20.36m24 (9xy)2(3x10y)22530m9m2 (mn)28m(mn)16m24y212y9 36a212a(xy)(xy)260a70a 12abc50b4c8p(2b)36q(2b) 4(2b)m(2b)1100x2 27x248y20.04y2361 (3x2y)2(7x7y)22540y16y2 (ab)28m(ab)16m249x2140x100 25a210a(xy)(xy)280a20a 12a2b2c20b412q(2b)4q(2b) 2(2b)m(2b)41n2 4x236y249y2361 (9x4y)2(xy)264160a100a2 (xy)24m(xy

12、)4m236n2108n81 4a24a(ab)(ab)215a330a 2ab2c100bc18p(y1)16q(y1) 8(y1)m(y1)1681n2 75x275y20.04n225 (2x6y)2(x7y)264160b100b2 (ab)26m(ab)9m225b210b1 4a24a(xy)(xy)270a240a2 4a3b2c70b8q(4a)4p(4a) 4(4a)m(4a)99y2 12x227y216y2324 (xy)2(x7y)22550n25n2 (ab)212m(ab)36m24a216a16 36a212a(ab)(ab)235a340ab 14ab2c20b

13、c4p(2b)40p(2b) 2(2b)m(2b)1649y2 12x275y236y2121 (7x5y)2(7xy)2112a36a2 (ab)210m(ab)25m249y284y36 4a24a(ab)(ab)265a30a 14ab3c90b2c8p(x9)32p(x9) 8(x9)m(x9)259a2 16x24y20.16y281 (xy)2(xy)210080m16m2 (mn)26m(mn)9m264n2160n100 9a26a(ab)(ab)215a410a2b 4ab3c40b212p(8a)4q(8a) 6(8a)m(8a)11a2 27x23y236b2400 (7

14、x6y)2(3xy)24998a49a2 (ab)212m(ab)36m2100y260y9 16a28a(mn)(mn)25a10a3 6abc90b12p(y9)32p(y9) 8(y9)m(y9)99n2 12x227y20.49a24 (xy)2(2x10y)2120m100m2 (ab)28m(ab)16m2100m240m4 25a210a(mn)(mn)250a60a 4a2b3c50bc20q(8a)4q(8a) 6(8a)m(8a)10064y2 64x264y20.49y24 (5x2y)2(3x9y)281108y36y2 (ab)212m(ab)36m264x248x9

15、 36a212a(mn)(mn)255a460a4 16ab2c20bc20p(9b)8q(9b) 6(9b)m(9b)161y2 48x248y20.16b2289 (3xy)2(6x10y)2100180n81n2 (xy)24m(xy)4m225x260x36 4a24a(ab)(ab)240a10a 4abc70b36p(3b)4p(3b) 2(3b)m(3b)6464a2 12x227y20.64b2400 (8x6y)2(x9y)2412m9m2 (mn)24m(mn)4m281m2144m64 16a28a(xy)(xy)25a70ab 14abc40bc12p(x8)4q(x8

16、) 2(x8)m(x8)16100b2 48x248y24x2169 (x3y)2(5xy)26432y4y2 (xy)210m(xy)25m2100b2120b36 25a210a(mn)(mn)275a4100ab 18ab2c20bc18p(1b)28q(1b) 6(1b)m(1b)1625y2 18x28y20.16n2169 (x6y)2(xy)2118a81a2 (mn)24m(mn)4m281n2108n36 16a28a(xy)(xy)240a20a 14abc90b2c6q(x3)12p(x3) 8(x3)m(x3)3636y2 100x216y20.16a29 (6x5y)

17、2(8x7y)210060b9b2 (mn)28m(mn)16m236n224n4 36a212a(ab)(ab)240a330a4b 14ab3c80b3c12q(5b)8q(5b) 2(5b)m(5b)6449n2 16x24y29a2225 (4x4y)2(x7y)2436m81m2 (ab)212m(ab)36m29a224a16 9a26a(mn)(mn)2100a270ab 14abc60b4c20q(x1)20q(x1) 6(x1)m(x1)136m2 3x212y20.81b2256 (4xy)2(x10y)264144n81n2 (ab)212m(ab)36m29m218m9

18、 4a24a(xy)(xy)25a30a4b 18a4bc100bc14p(y6)32p(y6) 8(y6)m(y6)2525x2 27x275y20.09a281 (xy)2(xy)23660a25a2 (mn)210m(mn)25m216y28y1 9a26a(mn)(mn)290a30ab 8ab2c70b412p(3a)24p(3a) 8(3a)m(3a)811b2 27x248y20.25n236 (8xy)2(4x8y)26480y25y2 (xy)210m(xy)25m249y270y25 4a24a(xy)(xy)245a90a 6abc40b3c14q(y9)24q(y9)

19、6(y9)m(y9)3681m2 64x24y29m264 (7x2y)2(4xy)281126m49m2 (mn)24m(mn)4m2100y220y1 9a26a(ab)(ab)290a480ab 6abc80b8p(y2)12p(y2) 8(y2)m(y2)2564b2 32x250y20.09n2169 (3xy)2(5xy)22570b49b2 (mn)26m(mn)9m236n272n36 25a210a(mn)(mn)225a30a3b 2a3b3c10b2c2p(y3)40p(y3) 8(y3)m(y3)10064y2 3x23y216a2169 (x4y)2(x8y)2491

20、40n100n2 (ab)28m(ab)16m29b230b25 25a210a(mn)(mn)225a420a4 8abc30b20p(y5)40q(y5) 2(y5)m(y5)10081a2 12x23y216m29 (7xy)2(8xy)23696b64b2 (xy)24m(xy)4m281y218y1 25a210a(xy)(xy)25a270ab 14a2b3c60b4q(y1)36p(y1) 6(y1)m(y1)10025x2 3x212y216a2144 (7xy)2(xy)26480b25b2 (ab)210m(ab)25m236m2108m81 9a26a(xy)(xy)24

21、5a30a2b 20abc60bc8p(5a)12p(5a) 2(5a)m(5a)641m2 48x227y236x281 (x2y)2(2xy)2100180y81y2 (mn)210m(mn)25m29b248b64 16a28a(mn)(mn)2100a230a 14ab2c40b412q(7a)24p(7a) 6(7a)m(7a)1636y2 32x218y20.16y2289 (xy)2(xy)26496b36b2 (ab)28m(ab)16m24m240m100 4a24a(mn)(mn)275a20a 18ab2c100b2c16p(x3)4p(x3) 2(x3)m(x3)8136a2 100x216y20.04a29 (9x6y)2(8xy)2100120y36y2 (mn)24m(mn)4m216m28m1 36a212a(mn)(mn)2