初二数学上册因式分解48.docx

1、初二数学上册因式分解48100a470a 4a2bc40b6p(x8)28p(x8) 2(x8)m(x8)1636y2 50x22y20.25a2324 (x3y)2(x10y)23672b36b2 (mn)24m(mn)4m249b2112b64 25a210a(mn)(mn)2x28x15 x23x404x227x18 499m260a240ab 2abc90b16q(1a)16q(1a) 4(1a)m(1a)99y2 8x232y249b29 (2xy)2(2x7y)23624n4n2 (mn)28m(mn)16m2100b2160b64 9a26a(mn)(mn)2x26x8 x22x

2、2416x264x63 6449n240a330a 14a3b2c50bc8q(x4)20p(x4) 2(x4)m(x4)164m2 16x2100y29a249 (xy)2(x9y)2100160b64b2 (ab)28m(ab)16m216a256a49 25a210a(xy)(xy)2x212x32 x27x83x224x36 44a25a30a4 20abc70b6q(3a)20q(3a) 4(3a)m(3a)164m2 4x24y20.16y2400 (xy)2(5x9y)249112y64y2 (xy)212m(xy)36m216m272m81 36a212a(mn)(mn)2x2

3、7x10 x27x3016x252x36 44x225a60a2b 2ab3c50b18p(4a)28p(4a) 8(4a)m(4a)3681n2 36x216y20.04x2121 (xy)2(4x10y)264112a49a2 (mn)26m(mn)9m29y224y16 36a212a(ab)(ab)2x215x54 x27x1812x231x7 6436n250a270a3 2ab3c90b410p(y5)40q(y5) 2(y5)m(y5)3625b2 8x232y281n249 (6x4y)2(7xy)22560b36b2 (ab)26m(ab)9m216b272b81 25a21

4、0a(mn)(mn)2x214x45 x27x188x230x25 1625b230a10a4b 8a3b2c90b310p(1b)32p(1b) 6(1b)m(1b)6449b2 75x248y20.49y225 (7xy)2(x8y)22520b4b2 (xy)28m(xy)16m216a264a64 25a210a(xy)(xy)2x214x45 x22x243x233x30 925a275a490ab 10a2bc50b3c2p(x9)40q(x9) 6(x9)m(x9)100100x2 12x248y236b2144 (xy)2(x8y)2412x9x2 (ab)28m(ab)16m

5、216b240b25 36a212a(xy)(xy)2x29x20 x28x204x232x28 10036a215a80ab 8a4b3c60b4c10q(y9)28q(y9) 4(y9)m(y9)8136b2 64x2100y236n2121 (2xy)2(x10y)26464m16m2 (mn)26m(mn)9m2100m2160m64 4a24a(ab)(ab)2x29x20 x25x504x246x90 164n25a260a 20abc30b416p(y6)20q(y6) 8(y6)m(y6)499y2 4x236y20.36x2169 (xy)2(xy)2420y25y2 (mn

6、)26m(mn)9m249b298b49 36a212a(mn)(mn)2x212x27 x26x169x236x32 964y295a10a3b 4abc70b46q(3a)16q(3a) 4(3a)m(3a)2525n2 8x218y24a2144 (x2y)2(5x8y)2428a49a2 (ab)26m(ab)9m281y254y9 36a212a(ab)(ab)2x215x56 x26x169x248x63 1100b285a350a 14a2bc10b4c6p(8b)24q(8b) 2(8b)m(8b)10064n2 64x236y20.49m281 (6x4y)2(6x10y)2

7、4928m4m2 (xy)210m(xy)25m216m248m36 4a24a(mn)(mn)2x29x20 x23x403x232x64 81100x290a350a4b 4abc40bc12p(7b)12q(7b) 8(7b)m(7b)4916m2 100x216y264n281 (x2y)2(xy)2118x81x2 (ab)210m(ab)25m29n212n4 4a24a(xy)(xy)2x210x16 x25x504x210x4 2549b2100a50a3b 18abc100b220p(y2)36q(y2) 6(y2)m(y2)16100n2 75x275y264m29 (4x6y)2(xy)23684a49a2 (mn)210m(mn)25m24y228y49 4a24a(ab)(ab)2x28x12 x22x246x232x40 4925n260a310a2b 6a2bc30b36q(6b)16q(6b) 2(6b)m(6b)1100x2 3x275y20.04n249 (3xy)2(9xy)2942b49b2 (mn)26m(mn)9m249b2112b64 9a26a(mn)(mn)2x210x24 x25x365x248x64 819y2