1、人教版初中八年级数学上册因式分解练习题大全890a10a 6ab3c40bc8p(5a)20p(5a) 4(5a)m(5a)4925y2 32x250y24n24 (xy)2(2xy)2432x64x2 (ab)212m(ab)36m249x2126x81 4a24a(xy)(xy)245a100a2 4a3bc40bc4q(5b)4p(5b) 4(5b)m(5b)1681b2 16x236y20.09y236 (x5y)2(7x7y)2416m16m2 (ab)210m(ab)25m216x256x49 4a24a(xy)(xy)225a30a2b 6abc50b4c4p(y6)40q(y6
2、) 2(y6)m(y6)3681x2 2x28y20.49x2121 (6xy)2(x8y)264112m49m2 (xy)28m(xy)16m2100n2120n36 25a210a(xy)(xy)250a40ab 14a4bc10b4c16p(x2)8q(x2) 2(x2)m(x2)425a2 16x236y225y264 (x2y)2(7xy)2936m36m2 (xy)28m(xy)16m24n220n25 25a210a(xy)(xy)210a20a3 8a4b2c70bc16p(y4)24p(y4) 8(y4)m(y4)100100m2 8x232y20.49x29 (8x6y)2
3、(x9y)23660x25x2 (mn)24m(mn)4m225y2100y100 9a26a(ab)(ab)210a230a2 8a3b3c80b2c8q(4b)32p(4b) 4(4b)m(4b)436m2 36x236y20.04m2144 (x6y)2(3x8y)281108n36n2 (mn)28m(mn)16m2100b2140b49 4a24a(ab)(ab)225a230a2b 6ab2c20bc18p(y2)12p(y2) 8(y2)m(y2)2536x2 2x22y236n281 (6x5y)2(5xy)2416n16n2 (mn)28m(mn)16m29x260x100
4、36a212a(ab)(ab)235a280a2b 2a2bc40b3c2p(x6)28p(x6) 6(x6)m(x6)10025y2 75x248y29b225 (4xy)2(9xy)23672x36x2 (mn)212m(mn)36m24y212y9 4a24a(mn)(mn)285a420a2 14abc40b16p(x2)36p(x2) 2(x2)m(x2)8136a2 75x212y20.36x2289 (7x3y)2(8x9y)22540m16m2 (ab)28m(ab)16m264x296x36 9a26a(mn)(mn)210a420a4 10a3b3c90b410q(y7)4
5、0p(y7) 6(y7)m(y7)251x2 50x250y216n281 (xy)2(x7y)22580y64y2 (mn)28m(mn)16m236x224x4 9a26a(ab)(ab)265a360ab 4a4bc20bc4q(x9)32p(x9) 8(x9)m(x9)499y2 64x236y264n281 (2x4y)2(4xy)236120y100y2 (mn)210m(mn)25m216n256n49 9a26a(xy)(xy)270a70ab 4abc100bc20q(y5)32p(y5) 6(y5)m(y5)2516m2 100x24y20.81y21 (2x4y)2(xy
6、)281144m64m2 (mn)26m(mn)9m225x290x81 36a212a(mn)(mn)225a20ab 8abc60bc14q(x4)12p(x4) 8(x4)m(x4)181y2 50x22y20.16m225 (x6y)2(xy)23660b25b2 (ab)210m(ab)25m216m240m25 36a212a(mn)(mn)25a240a 2a4bc20bc4p(y7)40p(y7) 6(y7)m(y7)481n2 36x264y29y24 (x3y)2(x10y)23672n36n2 (ab)26m(ab)9m225b220b4 36a212a(mn)(mn)2
7、60a310ab 2ab3c60bc16p(x6)20q(x6) 6(x6)m(x6)1649y2 27x275y20.25y21 (xy)2(xy)2114y49y2 (ab)24m(ab)4m249n270n25 36a212a(mn)(mn)225a30ab 14ab2c10bc2p(6b)16p(6b) 6(6b)m(6b)8164a2 18x22y20.09y216 (4xy)2(2xy)236120a100a2 (mn)28m(mn)16m281y290y25 25a210a(mn)(mn)2100a40a2b 6a2b3c10bc18p(3b)32p(3b) 6(3b)m(3b)
8、94b2 50x218y281m216 (8x6y)2(xy)2960m100m2 (xy)212m(xy)36m225y240y16 25a210a(ab)(ab)230a460ab 4abc50bc18p(1a)20q(1a) 6(1a)m(1a)819m2 100x24y20.81x2324 (4xy)2(2xy)264128b64b2 (ab)24m(ab)4m249m284m36 4a24a(ab)(ab)240a60a3 18a2bc90b28p(x6)8q(x6) 8(x6)m(x6)8164x2 8x22y20.49m2144 (6x3y)2(4xy)281162n81n2 (
9、ab)210m(ab)25m225y290y81 16a28a(xy)(xy)250a260ab 20ab3c50b14p(x7)28p(x7) 4(x7)m(x7)649a2 3x212y24y21 (2x5y)2(x7y)2100120a36a2 (mn)28m(mn)16m2100n280n16 9a26a(mn)(mn)225a20a 6abc20b2c12p(6a)12q(6a) 8(6a)m(6a)164n2 64x24y24x2289 (9x3y)2(xy)23696a64a2 (ab)212m(ab)36m29n254n81 16a28a(mn)(mn)255a80a2 10a
10、3b3c40b310p(y1)36q(y1) 4(y1)m(y1)4100b2 75x248y20.36x2400 (8x2y)2(xy)2954x81x2 (xy)26m(xy)9m216a216a4 25a210a(mn)(mn)2100a320ab 8a3bc40b3c14p(y9)16p(y9) 6(y9)m(y9)10036m2 32x218y20.36m2169 (x5y)2(xy)248a4a2 (ab)26m(ab)9m236n2108n81 25a210a(xy)(xy)250a470a2 20a4bc80b218p(9a)24q(9a) 2(9a)m(9a)814m2 10
11、0x264y225n29 (5xy)2(2xy)281126b49b2 (xy)210m(xy)25m225y230y9 25a210a(ab)(ab)275a360a3 2abc90bc6q(1b)4p(1b) 8(1b)m(1b)2536m2 48x275y225n21 (x3y)2(3x10y)210060a9a2 (xy)28m(xy)16m2100a2160a64 16a28a(ab)(ab)290a450a2b 14ab3c60bc4q(y2)4q(y2) 2(y2)m(y2)8116a2 12x248y20.25x2225 (xy)2(4x9y)264128y64y2 (xy)2
12、6m(xy)9m29m26m1 9a26a(xy)(xy)255a390a 8ab3c30bc2p(x7)36p(x7) 4(x7)m(x7)3636x2 3x275y20.49x2256 (4x3y)2(x8y)24928y4y2 (mn)210m(mn)25m216x240x25 16a28a(mn)(mn)225a320a2b 20ab3c30b4c6q(x7)24p(x7) 4(x7)m(x7)8125n2 27x227y236x2289 (x5y)2(4xy)236120m100m2 (ab)28m(ab)16m264b2144b81 25a210a(mn)(mn)250a350a
13、2ab3c100b6q(8b)28p(8b) 2(8b)m(8b)6416n2 48x23y24b2225 (2xy)2(x10y)23660n25n2 (xy)24m(xy)4m24x228x49 36a212a(xy)(xy)240a100a 2abc70b412q(x7)36q(x7) 4(x7)m(x7)981b2 2x218y24m249 (2x5y)2(4xy)2116n64n2 (ab)210m(ab)25m216b248b36 25a210a(ab)(ab)240a390a3 12a2b3c80b38q(x1)20q(x1) 6(x1)m(x1)8164b2 32x28y20.
14、09a225 (8x5y)2(x9y)2116n64n2 (mn)212m(mn)36m281x290x25 4a24a(mn)(mn)235a350ab 16ab3c30b14p(x7)8p(x7) 8(x7)m(x7)6425n2 64x236y20.16b264 (xy)2(9x7y)21680y100y2 (xy)210m(xy)25m281y2180y100 4a24a(xy)(xy)220a60a 8abc70b24q(7b)16q(7b) 2(7b)m(7b)6449n2 8x28y225b24 (3xy)2(9xy)225100y100y2 (mn)210m(mn)25m29x
15、236x36 9a26a(xy)(xy)265a260ab 6a2bc30b4c18q(x7)20q(x7) 6(x7)m(x7)499x2 50x250y20.36n2225 (xy)2(xy)2100200n100n2 (ab)24m(ab)4m2100b2180b81 36a212a(mn)(mn)280a90a3 4a3bc20b6p(3b)24p(3b) 4(3b)m(3b)4981x2 36x216y20.81x24 (2xy)2(xy)2948m64m2 (mn)28m(mn)16m216m280m100 4a24a(xy)(xy)255a80a 12ab2c60b4q(5a)2
16、0q(5a) 6(5a)m(5a)11m2 64x2100y20.16x225 (x6y)2(4xy)210060n9n2 (mn)24m(mn)4m236x272x36 9a26a(mn)(mn)230a480a3 14a2bc60bc4p(7b)36q(7b) 6(7b)m(7b)1636b2 64x236y20.25b21 (6xy)2(x9y)2930x25x2 (xy)210m(xy)25m216b28b1 36a212a(xy)(xy)255a50ab 4a2b3c50bc8p(4a)12q(4a) 4(4a)m(4a)814m2 36x236y236b29 (x3y)2(5xy)
17、26432b4b2 (mn)24m(mn)4m281n2108n36 25a210a(ab)(ab)215a40a2b 2ab3c90b3c4p(x5)32q(x5) 4(x5)m(x5)11m2 27x227y249m2169 (xy)2(4xy)2924m16m2 (ab)28m(ab)16m236n212n1 9a26a(mn)(mn)260a40a2b 14a2bc100b2c4q(y8)16q(y8) 8(y8)m(y8)964a2 50x232y20.49y29 (x4y)2(xy)249140b100b2 (ab)26m(ab)9m264y264y16 16a28a(ab)(ab
18、)250a10ab 14abc50b2c6q(8a)36p(8a) 6(8a)m(8a)1664b2 3x275y20.81b2289 (3xy)2(xy)249126y81y2 (ab)210m(ab)25m281x236x4 16a28a(ab)(ab)210a10a4 4a2b3c40b2c12p(7a)36p(7a) 4(7a)m(7a)3649a2 32x250y20.49m2121 (4x6y)2(x10y)225100y100y2 (xy)26m(xy)9m281x236x4 36a212a(ab)(ab)280a320a2b 12a2bc70b312p(7b)28p(7b) 2
19、(7b)m(7b)949n2 16x2100y20.64m21 (7x2y)2(xy)2960y100y2 (ab)28m(ab)16m249y2112y64 25a210a(xy)(xy)235a260a3b 4a2b3c70b216q(y6)8p(y6) 2(y6)m(y6)100100a2 64x236y20.81b2121 (x6y)2(3xy)22550y25y2 (ab)26m(ab)9m249a214a1 36a212a(xy)(xy)255a360a3 18ab3c10b3c12p(y5)24q(y5) 6(y5)m(y5)925x2 12x275y216m236 (xy)2(
20、xy)24942y9y2 (mn)212m(mn)36m264n264n16 4a24a(mn)(mn)275a380a3 2ab3c80b20p(7b)20p(7b) 8(7b)m(7b)1616b2 75x227y29x2196 (5x2y)2(x9y)28136b4b2 (mn)212m(mn)36m236a2108a81 25a210a(mn)(mn)2100a290a4 6abc60bc6p(2a)28q(2a) 6(2a)m(2a)161x2 18x218y29x249 (4x3y)2(xy)23636b9b2 (xy)210m(xy)25m225n2100n100 4a24a(a
21、b)(ab)2100a210ab 16a3bc40b212q(y5)40p(y5) 4(y5)m(y5)811n2 27x23y236x225 (xy)2(4x9y)22520x4x2 (ab)212m(ab)36m24a228a49 36a212a(ab)(ab)235a70a 20a4bc20b3c10p(4b)16q(4b) 6(4b)m(4b)416m2 18x232y264n249 (x4y)2(7xy)249126a81a2 (mn)210m(mn)25m236n284n49 25a210a(xy)(xy)255a380ab 8a3bc20b32q(4b)4q(4b) 4(4b)m(4b)449b2 64x216y264b2256 (x2y)2(xy)23636b9b2 (ab)28m(ab)16m29m26m1 9a26a(mn)(mn)2
