初中八年级数学上册因式分解练习题大全73.docx

1、初中八年级数学上册因式分解练习题大全7375a20a2b 14abc40b320q(x3)4q(x3) 6(x3)m(x3)49100x2 64x264y281b2121 (x6y)2(x8y)218a16a2 (xy)210m(xy)25m281b290b25 16a28a(ab)(ab)2x26x8 x25x503x223x40 10064a240a10a 20a4bc30bc12p(y1)40p(y1) 2(y1)m(y1)10016m2 48x248y20.36n2256 (4x2y)2(7x9y)264112x49x2 (ab)28m(ab)16m225m230m9 9a26a(xy

2、)(xy)2x213x42 x26x403x218x24 8136a225a50a2 20a2b3c100b4p(9a)32q(9a) 2(9a)m(9a)6436b2 64x216y225x2169 (7x6y)2(6xy)218x16x2 (mn)212m(mn)36m281b2108b36 16a28a(ab)(ab)2x210x16 x21x302x226x72 169n2100a340ab 8abc100b4c8p(x9)12q(x9) 6(x9)m(x9)19y2 50x250y281n2256 (5x5y)2(xy)2412b9b2 (xy)24m(xy)4m216a240a25

3、 25a210a(ab)(ab)2x210x21 x23x185x238x48 9100a25a470a2b 2ab2c20bc12q(y1)12p(y1) 2(y1)m(y1)10025m2 3x248y20.04a225 (3x4y)2(x8y)281108y36y2 (xy)26m(xy)9m264y2128y64 25a210a(ab)(ab)2x210x24 x26x405x220x15 8116n290a50a 8a4b2c100b34p(x1)20p(x1) 2(x1)m(x1)3649x2 8x250y20.64y2361 (9x2y)2(xy)2424b36b2 (mn)21

4、2m(mn)36m24a232a64 16a28a(mn)(mn)2x25x4 x26x1610x241x21 6416a235a60ab 12abc80b3c6q(9a)24p(9a) 6(9a)m(9a)2525y2 4x216y20.49x2400 (5xy)2(3x7y)2424x36x2 (mn)210m(mn)25m225x280x64 36a212a(mn)(mn)2x210x9 x25x365x242x16 8149b235a70a3b 10a2bc20b4q(1b)36q(1b) 8(1b)m(1b)36100m2 36x24y20.64m249 (6x6y)2(5xy)21

5、00140m49m2 (xy)210m(xy)25m236x272x36 4a24a(xy)(xy)2x211x28 x27x84x218x20 254b270a230a3 4ab3c20bc16p(7a)12p(7a) 8(7a)m(7a)964n2 36x24y249x264 (xy)2(x8y)24956y16y2 (mn)28m(mn)16m29x242x49 9a26a(ab)(ab)2x29x18 x27x1810x211x3 6425y250a80a2b 18a4b3c40b416p(9a)16p(9a) 2(9a)m(9a)10049n2 3x212y216b24 (8xy)2

6、(6xy)2118n81n2 (xy)24m(xy)4m29y236y36 25a210a(ab)(ab)2x27x10 x24x454x220x21 4949a230a280a 6a4b2c40b4c14q(5a)28p(5a) 2(5a)m(5a)2536x2 4x216y24m249 (7xy)2(7xy)28136x4x2 (ab)212m(ab)36m264n264n16 16a28a(mn)(mn)2x210x25 x24x3215x275x90 1636x25a10a4 6a2b3c90b3c16p(x5)28q(x5) 8(x5)m(x5)164x2 48x212y20.64b

7、236 (x4y)2(xy)22570a49a2 (mn)210m(mn)25m24m232m64 9a26a(xy)(xy)2x211x30 x27x1812x239x9 981y260a270a3 6a2b2c50b2c20q(x5)28p(x5) 6(x5)m(x5)10036n2 32x22y20.81y225 (x3y)2(6xy)22570m49m2 (mn)28m(mn)16m249y256y16 25a210a(xy)(xy)2x215x56 x22x354x234x70 149a220a40a 18a4bc70b3c20p(4b)20p(4b) 6(4b)m(4b)16100

8、n2 12x212y20.16y2196 (8x3y)2(4xy)21624y9y2 (ab)212m(ab)36m29a242a49 25a210a(xy)(xy)2x217x72 x25x504x231x42 2536m280a50a 20ab3c20b3c10q(5a)16p(5a) 2(5a)m(5a)4949m2 16x2100y264m24 (4xy)2(x7y)21616m4m2 (mn)212m(mn)36m2100b280b16 36a212a(mn)(mn)2x210x21 x27x188x26x1 8136n230a30a3 16abc100b18q(y6)28q(y6)

9、 6(y6)m(y6)3681m2 64x264y20.36m2196 (x3y)2(2x9y)2960b100b2 (ab)210m(ab)25m249b2126b81 16a28a(xy)(xy)2x216x63 x28x910x235x25 925y220a40a4b 6ab2c10b310q(x7)36p(x7) 4(x7)m(x7)3625y2 3x23y24x2100 (xy)2(x7y)22560b36b2 (xy)28m(xy)16m249m298m49 25a210a(ab)(ab)2x27x10 x27x308x238x9 44x255a30a4b 8a3bc10b44p(

10、4a)16q(4a) 2(4a)m(4a)649x2 2x218y249n281 (x6y)2(8x7y)264128x64x2 (ab)28m(ab)16m216y224y9 36a212a(xy)(xy)2x210x25 x26x73x230x27 64100x210a340a 12a2bc80b4c12q(4a)32p(4a) 2(4a)m(4a)649m2 100x2100y20.09n21 (6xy)2(2x8y)23696y64y2 (xy)24m(xy)4m281a236a4 4a24a(xy)(xy)2x214x48 x26x73x227x42 10081m215a50a 10

11、a3b2c30b48q(x2)16p(x2) 2(x2)m(x2)8125a2 36x264y20.49a2121 (4x6y)2(8xy)2412x9x2 (xy)24m(xy)4m264x2144x81 16a28a(xy)(xy)2x25x6 x24x326x232x42 10049m275a450a4 2a3bc90b4p(y8)16p(y8) 4(y8)m(y8)3681b2 36x236y29b2324 (x5y)2(x10y)2412m9m2 (ab)212m(ab)36m2100x2120x36 4a24a(mn)(mn)2x27x10 x26x4012x231x7 1681x

12、220a100a2b 8a4bc90b4p(y8)8p(y8) 4(y8)m(y8)10016b2 2x250y20.04b2121 (x5y)2(7x7y)2112n36n2 (xy)210m(xy)25m225m2100m100 9a26a(ab)(ab)2x25x6 x25x5016x232x12 4100b290a20ab 8abc20bc4p(x3)4p(x3) 4(x3)m(x3)6416n2 50x22y20.36x2121 (3xy)2(x7y)2116n64n2 (ab)28m(ab)16m236a212a1 4a24a(xy)(xy)2x210x24 x25x68x222x

13、15 425y260a410a 18ab2c20b4c10q(x8)36q(x8) 2(x8)m(x8)964m2 64x216y20.04x264 (xy)2(xy)24998b49b2 (xy)212m(xy)36m249y270y25 16a28a(mn)(mn)2x217x72 x24x2110x270x100 164x290a360ab 16a4b2c40b218p(3a)28q(3a) 8(3a)m(3a)819b2 36x216y225x2121 (8xy)2(5x8y)225100m100m2 (mn)210m(mn)25m24y216y16 36a212a(xy)(xy)2x

14、211x18 x21x306x236x54 14x230a3100a2b 14abc20b4c18p(3a)28p(3a) 8(3a)m(3a)4964m2 2x22y249x21 (2xy)2(9xy)23624x4x2 (ab)24m(ab)4m281b290b25 36a212a(mn)(mn)2x25x6 x23x284x248x80 494y255a240a 16a3bc90bc12p(y4)40q(y4) 6(y4)m(y4)481m2 64x24y20.25n225 (x6y)2(6xy)21624a9a2 (xy)210m(xy)25m281x2126x49 9a26a(xy)

15、(xy)2x216x64 x27x816x244x30 494y210a30a 20abc50b24q(3b)12p(3b) 6(3b)m(3b)981y2 50x250y20.36a2361 (9xy)2(xy)2100180n81n2 (xy)26m(xy)9m264y248y9 36a212a(xy)(xy)2x210x16 x27x3016x220x6 1616b230a440ab 12a3b3c50b2c6q(x3)40q(x3) 6(x3)m(x3)981n2 16x24y29n2361 (xy)2(7x8y)23636a9a2 (mn)210m(mn)25m236n212n1 4

16、a24a(mn)(mn)2x214x45 x25x1416x268x72 1625y275a20a2 14a2b2c20b28q(8a)40q(8a) 6(8a)m(8a)936a2 36x2100y20.16y264 (xy)2(x8y)2436y81y2 (xy)210m(xy)25m216a232a16 9a26a(ab)(ab)2x213x36 x28x2016x280x100 1616a215a360a2 10a4bc50b4c16p(x2)36q(x2) 2(x2)m(x2)254b2 3x23y20.09b281 (xy)2(3x8y)2416y16y2 (xy)28m(xy)1

17、6m29m236m36 36a212a(ab)(ab)2x213x42 x26x163x211x8 1636x270a2100a3b 18abc70bc8q(x1)40q(x1) 8(x1)m(x1)6464m2 64x216y20.49y21 (x6y)2(x9y)23636m9m2 (xy)210m(xy)25m249m256m16 25a210a(mn)(mn)2x215x54 x25x1420x248x28 116x245a460a2b 12ab2c100b4c20p(y4)28q(y4) 6(y4)m(y4)369a2 100x236y20.04y24 (xy)2(x9y)23610

18、8n81n2 (mn)26m(mn)9m281m2126m49 9a26a(ab)(ab)2x211x30 x29x104x228x49 254y210a10a 18a4b3c60b22p(y4)16p(y4) 4(y4)m(y4)4964a2 32x28y29b2400 (x3y)2(x8y)26480b25b2 (mn)24m(mn)4m225b210b1 16a28a(xy)(xy)2x210x24 x26x276x246x80 259m250a490ab 2a2bc80b412p(2a)40p(2a) 8(2a)m(2a)1009b2 2x22y236b2256 (3xy)2(5xy)

19、264144m81m2 (ab)26m(ab)9m264b280b25 9a26a(xy)(xy)2x215x54 x24x215x248x27 259x295a330a3b 18ab2c30b2p(y3)12p(y3) 6(y3)m(y3)1664n2 27x23y20.81b2400 (4xy)2(xy)2440x100x2 (xy)212m(xy)36m264a280a25 16a28a(ab)(ab)2x212x32 x25x616x228x10 6425n235a50ab 10abc10b20p(5a)4q(5a) 8(5a)m(5a)10064m2 48x23y20.64m2121 (xy)2(xy)24928b4b2 (ab)210m(ab)25m264x2128x64 36a212a(mn)(mn)2x216x64 x23x189x236x32 8125n225a40ab 16a4b2c90bc8q(1b)32p(1b) 2(1b)m(1b)4916n2 48x275y225a2400 (x3y)2(x9y)2