初二数学上册因式分解练习题大全22.docx

1、初二数学上册因式分解练习题大全221632x16x2 (ab)24m(ab)4m236b236b9 9a26a(xy)(xy)2x29x14 x27x1816x236x14 2516n2100a2100a2b 14a4b2c60b3c6q(x8)16p(x8) 8(x8)m(x8)10025x2 27x248y20.04a21 (7xy)2(4x10y)28172n16n2 (ab)28m(ab)16m236x272x36 36a212a(mn)(mn)2x214x45 x28x93x26x3 949m240a310a2b 18a4bc100b12p(9a)32q(9a) 6(9a)m(9a)

2、4949y2 32x218y20.25y264 (x6y)2(2x7y)218a16a2 (mn)210m(mn)25m236n296n64 9a26a(xy)(xy)2x28x15 x22x354x239x56 416x250a90a 2a3b2c70bc14p(5a)32q(5a) 6(5a)m(5a)649n2 32x218y20.25x264 (5xy)2(4x9y)21640n25n2 (ab)28m(ab)16m236a236a9 36a212a(ab)(ab)2x213x36 x25x248x236x28 4981b25a480a4 18abc100b2q(2a)28q(2a)

3、8(2a)m(2a)3616b2 8x22y20.09n236 (xy)2(x10y)2420a25a2 (mn)24m(mn)4m29b248b64 4a24a(ab)(ab)2x29x20 x28x203x211x8 4936n215a440a4 10a3b3c100b220p(y7)40q(y7) 4(y7)m(y7)94x2 8x232y20.49m264 (4x2y)2(xy)249126n81n2 (mn)210m(mn)25m216a240a25 9a26a(mn)(mn)2x29x20 x28x204x226x36 464y2100a420a 14a3bc50bc2q(7a)3

4、2q(7a) 8(7a)m(7a)425m2 4x264y236b29 (x5y)2(2x7y)216x9x2 (mn)212m(mn)36m281b2144b64 36a212a(xy)(xy)2x212x36 x27x84x216x15 4949a220a70ab 12ab2c70b4c14q(1a)24q(1a) 8(1a)m(1a)169n2 36x2100y20.36x264 (3x6y)2(xy)2412x9x2 (xy)212m(xy)36m249m270m25 4a24a(mn)(mn)2x215x54 x25x64x218x18 8181y255a10ab 20ab2c50b

5、2c18p(x3)28p(x3) 8(x3)m(x3)819n2 32x232y225x281 (xy)2(2xy)24970m25m2 (ab)24m(ab)4m24m240m100 16a28a(mn)(mn)2x29x20 x25x66x215x6 25100y265a100a4 10a4b2c100bc10q(y3)8p(y3) 2(y3)m(y3)254n2 50x22y20.64m264 (xy)2(xy)281126m49m2 (mn)210m(mn)25m225n280n64 9a26a(xy)(xy)2x27x12 x28x2012x239x9 19n275a50ab 8ab

6、c20b210q(2a)40q(2a) 2(2a)m(2a)3616b2 2x250y225y2225 (xy)2(xy)2930m25m2 (mn)212m(mn)36m2100y260y9 16a28a(ab)(ab)2x27x12 x21x308x230x28 416a215a30a2b 8a3b2c40b416p(x7)12p(x7) 8(x7)m(x7)464n2 48x227y216x2225 (6xy)2(5x7y)2116m64m2 (ab)212m(ab)36m281m2180m100 9a26a(xy)(xy)2x29x18 x24x456x238x60 814m265a6

7、0a4 6abc70bc18p(x7)40q(x7) 8(x7)m(x7)4100n2 75x248y236b2289 (6xy)2(8x7y)26464b16b2 (ab)212m(ab)36m29a248a64 4a24a(mn)(mn)2x214x48 x23x403x215x18 164n235a60a 12a4bc10b10p(x8)8p(x8) 4(x8)m(x8)25100m2 8x250y264a249 (7x2y)2(2x9y)2116a64a2 (ab)210m(ab)25m264m264m16 25a210a(ab)(ab)2x216x63 x25x243x238x80

8、8149b255a50ab 14ab2c70b18p(x9)24q(x9) 6(x9)m(x9)2549a2 12x248y20.49b2121 (8x6y)2(8xy)249126y81y2 (ab)28m(ab)16m281n2162n81 25a210a(ab)(ab)2x214x49 x22x2412x222x6 16100b280a410a3 4a2bc30b212p(y8)20p(y8) 2(y8)m(y8)1636y2 16x2100y20.04b2289 (x3y)2(6x9y)21656y49y2 (mn)24m(mn)4m216y280y100 9a26a(mn)(mn)2

9、x214x45 x23x2820x265x45 99m270a80a3b 6ab2c90bc20p(x1)20p(x1) 2(x1)m(x1)2536a2 2x218y20.64x225 (xy)2(2xy)28172b16b2 (xy)24m(xy)4m236m224m4 25a210a(xy)(xy)2x211x28 x22x353x215x18 100100x25a340a2b 10a3b3c60bc2p(6b)40p(6b) 6(6b)m(6b)8149b2 16x264y29b29 (3x5y)2(8xy)264112m49m2 (xy)28m(xy)16m225n230n9 25a

10、210a(xy)(xy)2x213x36 x21x308x220x12 100100y255a50ab 14abc30b4c16p(x1)20p(x1) 6(x1)m(x1)925n2 16x2100y20.64m2169 (8xy)2(xy)21664a64a2 (mn)210m(mn)25m225m240m16 4a24a(mn)(mn)2x28x16 x29x104x222x24 499y220a80a 18a3b2c80b2c10p(y2)24q(y2) 8(y2)m(y2)25100b2 100x24y20.04x2400 (5xy)2(xy)281144a64a2 (mn)210m

11、(mn)25m281x272x16 36a212a(ab)(ab)2x28x12 x25x1415x256x49 2525m285a90a 2a2b2c20b320p(y9)36p(y9) 4(y9)m(y9)8164a2 2x232y216a2196 (7x4y)2(xy)24984x36x2 (mn)212m(mn)36m29y236y36 25a210a(ab)(ab)2x211x30 x26x406x243x72 10064n25a30a 14abc50b410q(8b)4p(8b) 4(8b)m(8b)169m2 4x216y20.25m2169 (9x2y)2(xy)264160m

12、100m2 (ab)212m(ab)36m225m270m49 9a26a(ab)(ab)2x214x48 x23x4010x256x64 259n250a10a2b 16a4b2c30b36q(y5)16q(y5) 8(y5)m(y5)49b2 12x227y281b24 (5x6y)2(5xy)21648x36x2 (xy)26m(xy)9m249m284m36 9a26a(mn)(mn)2x210x24 x27x184x245x50 149n2100a60a 2a4bc40bc20q(y4)28q(y4) 6(y4)m(y4)19y2 32x232y249y2100 (x2y)2(7x7

13、y)2424a36a2 (xy)26m(xy)9m216x248x36 9a26a(ab)(ab)2x211x24 x26x76x219x15 981a290a4100ab 2a3b2c70bc2q(3b)12q(3b) 6(3b)m(3b)4936m2 50x218y20.04y2289 (xy)2(xy)210080m16m2 (xy)28m(xy)16m264x2160x100 25a210a(ab)(ab)2x210x25 x26x4012x234x24 10016m255a50ab 12abc80b4c12q(8a)8p(8a) 4(8a)m(8a)8149y2 12x212y20.

14、49a216 (xy)2(xy)2428m49m2 (ab)212m(ab)36m281m2144m64 9a26a(ab)(ab)2x24x3 x25x144x234x70 6464b245a60a2 10ab2c30bc6q(y3)20p(y3) 4(y3)m(y3)2564b2 36x24y225y249 (xy)2(6xy)21648x36x2 (ab)24m(ab)4m264m264m16 36a212a(ab)(ab)2x210x9 x26x2712x227x6 2549m230a100ab 16ab3c80b310q(8a)4p(8a) 6(8a)m(8a)1616y2 8x22

15、y249x29 (xy)2(xy)281180n100n2 (mn)24m(mn)4m281m2108m36 16a28a(ab)(ab)2x215x54 x28x96x220x16 2536x285a80a 10a3b3c30b210q(3b)4q(3b) 4(3b)m(3b)6425n2 50x250y236a2121 (xy)2(7xy)21632x16x2 (ab)212m(ab)36m281x2180x100 25a210a(mn)(mn)2x29x14 x24x325x238x48 449b255a440ab 20abc100b6q(x3)12p(x3) 8(x3)m(x3)44x

16、2 50x218y236n216 (5xy)2(3xy)22590m81m2 (ab)24m(ab)4m2100b2100b25 25a210a(xy)(xy)2x211x18 x25x2415x234x16 8116m225a50a4 12ab2c40bc16p(1b)28p(1b) 6(1b)m(1b)964b2 36x216y20.49y29 (x5y)2(9xy)2112n36n2 (xy)26m(xy)9m264a248a9 4a24a(mn)(mn)2x214x45 x26x4016x248x35 449n290a50a4b 16ab2c100bc12p(1a)24q(1a) 2(

17、1a)m(1a)4916x2 48x275y20.49m2289 (3x4y)2(5x10y)22560y36y2 (ab)26m(ab)9m24x224x36 4a24a(ab)(ab)2x212x35 x26x408x210x2 4916y220a390a3b 6a2bc50bc10q(9a)32q(9a) 4(9a)m(9a)1616n2 3x212y264y2100 (9x4y)2(x7y)28190b25b2 (ab)212m(ab)36m264a2112a49 25a210a(xy)(xy)2x26x5 x25x146x222x16 1636a2100a60a4 10abc90b2

18、c20p(9a)20p(9a) 6(9a)m(9a)3649x2 3x212y20.09m2169 (xy)2(x7y)216x9x2 (xy)26m(xy)9m236b2108b81 4a24a(mn)(mn)2x212x32 x22x356x239x63 64100y255a80a2b 18ab2c30bc14p(8b)32p(8b) 2(8b)m(8b)4925a2 2x232y20.04x2361 (7x2y)2(8xy)23624x4x2 (ab)28m(ab)16m225x210x1 16a28a(xy)(xy)2x212x32 x28x2015x269x72 1636n210a1

19、0a 18a4b3c70b2c20p(x8)20p(x8) 8(x8)m(x8)1100b2 18x218y20.16a24 (xy)2(5x9y)22540x16x2 (xy)26m(xy)9m264y2112y49 36a212a(mn)(mn)2x24x4 x23x406x241x63 364a285a80a3b 20abc20b4c16q(4b)16q(4b) 2(4b)m(4b)819x2 50x250y249m249 (x6y)2(6x9y)21632b16b2 (mn)26m(mn)9m2100m280m16 4a24a(ab)(ab)2x215x56 x25x148x226x18 6436m290a290a3b 4ab3c30b12p(x2)20p(x2) 8(x2)m(x2)464m2 16x264y20.04b2289 (7x2y)2(x10y)2912a4a2 (ab)210m(ab)25m225a260a36 4a24a(xy)(xy)2x24x4 x23x2812x238x20 4100y2