1、八年级数学上册因式分解5340a230a 8a3b2c90b14p(y4)28p(y4) 4(y4)m(y4)19a2 3x248y20.09n225 (2xy)2(xy)21680n100n2 (mn)212m(mn)36m2100a240a4 36a212a(xy)(xy)2x212x32 x23x286x243x72 8125a240a240a2b 14ab3c30b4c4p(y7)4q(y7) 2(y7)m(y7)499x2 8x250y20.64x2121 (xy)2(x10y)26496a36a2 (ab)210m(ab)25m29m230m25 9a26a(xy)(xy)2x25
2、x6 x26x276x237x45 6416x290a340a2b 2a2bc20bc12p(x9)12p(x9) 8(x9)m(x9)6436x2 4x264y20.36a2121 (xy)2(xy)21656y49y2 (ab)24m(ab)4m236n2108n81 25a210a(mn)(mn)2x29x18 x27x88x234x35 6464b255a440a3b 4ab2c80b3c2q(x8)32q(x8) 6(x8)m(x8)8181m2 18x22y249m2121 (2xy)2(8x10y)23624x4x2 (mn)210m(mn)25m24n28n4 36a212a(
3、ab)(ab)2x214x48 x29x1012x239x27 8125n280a30a 18a2bc10b16p(4a)24p(4a) 6(4a)m(4a)416n2 8x232y20.16b236 (x2y)2(xy)28154m9m2 (xy)212m(xy)36m249n2140n100 4a24a(xy)(xy)2x214x49 x26x2716x272x81 369b280a490a4b 6ab3c60bc4q(2a)32q(2a) 2(2a)m(2a)499x2 50x218y20.25b21 (4xy)2(3x8y)24956b16b2 (ab)24m(ab)4m225a210
4、a1 4a24a(ab)(ab)2x210x21 x24x4520x253x18 2564x275a310a2 10abc40b12q(5a)8p(5a) 6(5a)m(5a)6436n2 48x275y20.81x2196 (6xy)2(xy)218a16a2 (ab)212m(ab)36m24a232a64 4a24a(ab)(ab)2x212x27 x23x182x215x25 819n245a310a4 10abc50b3c16q(x6)24q(x6) 6(x6)m(x6)136m2 64x216y20.49n2144 (x5y)2(xy)210040m4m2 (mn)28m(mn)1
5、6m281a2108a36 16a28a(mn)(mn)2x25x6 x27x812x247x45 1004n255a10a4b 14a4b2c50b12p(3b)36q(3b) 4(3b)m(3b)494a2 3x23y29n2169 (x2y)2(6xy)23696m64m2 (mn)28m(mn)16m249m214m1 4a24a(xy)(xy)2x27x12 x23x2816x228x6 259a225a4100a 20ab3c100b22q(x8)32q(x8) 4(x8)m(x8)49100n2 3x227y20.04m2289 (x4y)2(x7y)21664b64b2 (mn
6、)28m(mn)16m2100x2180x81 36a212a(ab)(ab)2x216x63 x27x189x215x6 981n265a330ab 4abc70b4p(1a)28q(1a) 2(1a)m(1a)19a2 48x248y216n2100 (4x5y)2(xy)281144b64b2 (mn)210m(mn)25m264b232b4 9a26a(xy)(xy)2x29x14 x25x364x218x14 449b230a80a 18a4bc10b2c4p(1a)20p(1a) 8(1a)m(1a)494a2 36x2100y24x21 (x3y)2(8xy)236120a100
7、a2 (mn)24m(mn)4m24y24y1 16a28a(mn)(mn)2x29x20 x25x509x239x42 949m255a80a3b 20a4bc20b416p(y4)8q(y4) 2(y4)m(y4)6436n2 48x248y20.64b249 (8x6y)2(xy)23696b64b2 (ab)212m(ab)36m24n236n81 4a24a(ab)(ab)2x214x48 x27x89x239x40 10049a295a50ab 2abc20b12q(5a)24p(5a) 2(5a)m(5a)425m2 48x212y20.04m2121 (x3y)2(9xy)26464y16y2 (mn)24m(mn)4m29a248a64 4a24a(xy)(xy)2x29x14 x27x815x243x8 9100x295a320a 6a3b2c100b28q(y1)8q(y1) 8(y1)m(y1)494y2 12x248y225a249 (x6y)2(8xy)236108m81m2 (xy)24m(xy)4m281y236y4 36a212a(ab)(ab)2x27x12 x24x325x214x9 100100x2
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