初中八年级数学上册因式分解练习题大全47.docx

1、初中八年级数学上册因式分解练习题大全4770a330a2b 18ab3c20bc14q(9a)24p(9a) 2(9a)m(9a)8136a2 75x248y20.64a2256 (xy)2(8x7y)248b4b2 (mn)212m(mn)36m249m242m9 36a212a(xy)(xy)2x212x36 x22x358x246x63 436m215a40a2b 6a2bc30b3c4q(y5)36p(y5) 4(y5)m(y5)925n2 2x22y20.09x2100 (xy)2(x7y)281108x36x2 (ab)24m(ab)4m29a218a9 36a212a(ab)(a

2、b)2x210x24 x25x1416x268x72 6416m290a40a 6ab3c80b2c8q(9b)12p(9b) 2(9b)m(9b)1616m2 50x22y20.16n216 (9x6y)2(5x10y)264160y100y2 (mn)212m(mn)36m29y254y81 9a26a(mn)(mn)2x213x40 x24x2112x222x8 814a235a10a4 4a2bc40bc12p(4b)20q(4b) 8(4b)m(4b)64100y2 16x216y264y2169 (xy)2(xy)26432y4y2 (ab)24m(ab)4m281x2108x36

3、 36a212a(ab)(ab)2x212x32 x25x246x242x60 36100n275a100a4 2abc60bc18q(x9)32p(x9) 4(x9)m(x9)1649a2 75x227y20.36a2256 (x2y)2(4x7y)236108y81y2 (mn)26m(mn)9m24a236a81 4a24a(xy)(xy)2x28x15 x23x288x220x12 4916a290a370ab 14a2bc50b38q(9b)4q(9b) 6(9b)m(9b)2536a2 100x264y20.09b225 (2xy)2(x10y)2118m81m2 (ab)24m(

4、ab)4m29x26x1 9a26a(ab)(ab)2x214x48 x26x166x219x15 181x215a90ab 12abc80bc8q(x7)16q(x7) 4(x7)m(x7)81100m2 18x28y281a2289 (5xy)2(x10y)2420y25y2 (ab)212m(ab)36m225a290a81 4a24a(mn)(mn)2x29x14 x23x288x218x9 10064b290a60a 12ab3c90b14q(y5)20q(y5) 2(y5)m(y5)1616y2 4x236y20.16b236 (9xy)2(x10y)21624y9y2 (ab)2

5、4m(ab)4m29b236b36 4a24a(xy)(xy)2x215x56 x21x302x225x50 169b255a50a 4ab2c90bc4q(3b)36p(3b) 2(3b)m(3b)10016m2 100x2100y20.04y2256 (xy)2(xy)2420y25y2 (xy)26m(xy)9m225y270y49 36a212a(mn)(mn)2x212x35 x28x203x230x63 4916m270a70a 2ab2c30b3c6p(3b)20p(3b) 6(3b)m(3b)649b2 2x28y29x264 (xy)2(4xy)24942x9x2 (xy)2

6、6m(xy)9m216m264m64 9a26a(xy)(xy)2x215x56 x21x304x234x16 3616x25a30ab 4abc40b2c2p(y7)28p(y7) 8(y7)m(y7)3636n2 64x236y20.16a2121 (9x5y)2(xy)2936y36y2 (xy)212m(xy)36m29y26y1 4a24a(xy)(xy)2x26x9 x21x303x224x36 8116y260a2100a 20a2bc10b16q(1a)4q(1a) 6(1a)m(1a)369a2 8x28y29a2324 (x6y)2(x10y)21624y9y2 (mn)2

7、6m(mn)9m249m298m49 36a212a(mn)(mn)2x211x18 x27x189x236x35 149b245a70a2 16a3bc10b16q(y3)28p(y3) 6(y3)m(y3)10049b2 100x216y281b2196 (9xy)2(3xy)2118m81m2 (mn)26m(mn)9m281m272m16 25a210a(mn)(mn)2x211x30 x29x1016x236x14 1649a245a340a3b 10a4b2c100b12p(9b)28p(9b) 2(9b)m(9b)1681x2 75x248y20.36n2169 (x3y)2(x

8、y)26464x16x2 (mn)24m(mn)4m225x270x49 25a210a(mn)(mn)2x210x24 x24x3210x237x7 8116m210a390a 8a4bc30bc2p(y1)4q(y1) 4(y1)m(y1)10025y2 50x250y20.25y2289 (xy)2(8xy)22570n49n2 (mn)26m(mn)9m24m228m49 36a212a(xy)(xy)2x210x25 x27x88x252x80 416y285a30a3b 12abc80b3c20p(x5)4p(x5) 8(x5)m(x5)8149m2 64x264y20.49y21

9、69 (xy)2(8xy)249126x81x2 (xy)210m(xy)25m281a2144a64 36a212a(ab)(ab)2x28x15 x22x248x244x36 6425x230a4100a3 10ab2c70b2c14p(5a)4q(5a) 4(5a)m(5a)19m2 3x23y20.81x2100 (x2y)2(x9y)26448b9b2 (ab)26m(ab)9m2100a2120a36 4a24a(mn)(mn)2x213x42 x24x3212x229x14 8181n270a40a 14ab3c90b18p(8b)32p(8b) 6(8b)m(8b)181n2

10、50x250y20.36m2361 (4x3y)2(x8y)210080y16y2 (ab)24m(ab)4m29b230b25 36a212a(mn)(mn)2x28x12 x24x124x228x40 4936n290a380a 10a4b3c50b6p(6a)4p(6a) 8(6a)m(6a)8125m2 4x236y20.09b2169 (4xy)2(x9y)26496b36b2 (xy)210m(xy)25m2100a2200a100 36a212a(ab)(ab)2x28x16 x23x406x219x8 10036n295a240a3 8ab2c90b8p(y6)8p(y6) 2

11、(y6)m(y6)364y2 12x23y20.09a2361 (5x5y)2(x7y)24956a16a2 (xy)210m(xy)25m216m28m1 25a210a(ab)(ab)2x26x8 x25x1416x232x12 2516n210a350a2b 18abc50b4c8p(x4)20q(x4) 4(x4)m(x4)2549a2 64x24y24m2144 (7xy)2(4xy)2100160y64y2 (xy)28m(xy)16m236a272a36 4a24a(xy)(xy)2x212x35 x24x324x216x16 19y2100a90a3b 18a4bc70b2c14p(6b)16p(6b) 8(6b)m(6b)6449x2 16x264y20.04b264 (x6y)2(xy)22580b64b2 (xy)24m(xy)4m216b280b100 16a28a(mn)(mn)2