初中八年级数学上册因式分解练习题大全50.docx

1、初中八年级数学上册因式分解练习题大全50960m100m2 (mn)26m(mn)9m225a260a36 36a212a(ab)(ab)2x28x12 x25x504x214x12 8149y280a70a2b 16a4b3c90b416q(9a)4p(9a) 4(9a)m(9a)259a2 48x227y20.04a2361 (8xy)2(xy)216y9y2 (mn)24m(mn)4m2100a2120a36 4a24a(mn)(mn)2x25x6 x26x276x229x30 499a295a10a4b 16a4bc90b14p(6b)40q(6b) 4(6b)m(6b)1649m2

2、48x212y20.09b2361 (x6y)2(xy)281180y100y2 (xy)212m(xy)36m281n2108n36 25a210a(xy)(xy)2x210x21 x27x86x235x36 2536m220a310ab 4a3b3c30b18p(9a)36p(9a) 4(9a)m(9a)25100y2 27x212y24x21 (xy)2(xy)264144x81x2 (mn)24m(mn)4m216n240n25 16a28a(mn)(mn)2x27x12 x25x3616x252x30 3649n245a100a2 4a3b2c90b16q(y3)8p(y3) 8(y

3、3)m(y3)2536x2 3x212y264y281 (xy)2(6x8y)26480n25n2 (mn)210m(mn)25m264m216m1 25a210a(ab)(ab)2x212x27 x26x4012x230x12 8125n295a10a4b 4abc60b20q(y9)36p(y9) 2(y9)m(y9)125m2 2x250y281y2256 (x6y)2(5xy)281126b49b2 (mn)212m(mn)36m281a2126a49 36a212a(ab)(ab)2x211x28 x25x3616x216x4 364n235a90ab 14a4bc30bc2p(1b

4、)16q(1b) 4(1b)m(1b)2536m2 100x2100y216b2361 (x4y)2(6xy)2110a25a2 (xy)210m(xy)25m281a2162a81 4a24a(ab)(ab)2x212x35 x26x710x231x15 1004n2100a460a 18ab3c10b10p(8b)40p(8b) 2(8b)m(8b)8116n2 32x22y24n281 (6x5y)2(7xy)2116a64a2 (mn)26m(mn)9m281y236y4 16a28a(xy)(xy)2x216x63 x23x2816x248x27 14n25a4100a2 10ab3

5、c90bc18p(8b)36p(8b) 4(8b)m(8b)644a2 36x2100y225y2289 (8xy)2(7xy)236108y81y2 (xy)24m(xy)4m2100m2100m25 9a26a(xy)(xy)2x27x12 x27x183x224x21 649n225a30a3 18ab3c30b412q(8a)36p(8a) 6(8a)m(8a)9100a2 18x28y216x2169 (xy)2(x8y)2432b64b2 (xy)28m(xy)16m264n264n16 4a24a(mn)(mn)2x218x81 x22x2415x247x36 16100m240

6、a80a 12ab3c80b410p(y7)36p(y7) 4(y7)m(y7)116n2 75x275y20.81n29 (3xy)2(x7y)210060b9b2 (xy)28m(xy)16m29a230a25 9a26a(ab)(ab)2x212x32 x25x5016x268x72 2516y255a100a2 10a2b3c50b10q(7b)12p(7b) 6(7b)m(7b)3649y2 2x218y20.64x2256 (5xy)2(6x10y)22590y81y2 (xy)212m(xy)36m264y2144y81 16a28a(mn)(mn)2x211x24 x27x81

7、0x256x64 10081m220a380ab 8a3b3c60bc14q(y7)24p(y7) 4(y7)m(y7)116n2 64x264y20.49y2121 (9x5y)2(9xy)210060x9x2 (xy)24m(xy)4m264a280a25 25a210a(xy)(xy)2x212x32 x28x203x216x20 8125a275a250a2b 8abc60bc10p(y8)12q(y8) 2(y8)m(y8)464a2 12x23y20.64a2121 (2x2y)2(4xy)22530a9a2 (mn)28m(mn)16m236x236x9 16a28a(mn)(m

8、n)2x212x32 x29x103x213x14 3681a275a450ab 20a3bc40b8q(y3)40p(y3) 8(y3)m(y3)2536a2 48x227y20.64y2289 (x3y)2(x9y)26480a25a2 (ab)210m(ab)25m225y290y81 4a24a(mn)(mn)2x214x49 x25x245x210x5 3625m210a70ab 16abc20b14q(y8)8p(y8) 8(y8)m(y8)36100x2 75x212y20.36m264 (xy)2(xy)281162b81b2 (ab)28m(ab)16m24m228m49 4

9、a24a(mn)(mn)2x27x12 x24x4516x252x30 10016y275a100a 18a2bc80b2c12q(y2)12p(y2) 2(y2)m(y2)6449a2 4x24y20.64m2121 (xy)2(x8y)2100160y64y2 (xy)212m(xy)36m216x280x100 9a26a(mn)(mn)2x216x63 x22x353x216x5 25100b235a290a 6ab2c50b8p(y6)24q(y6) 6(y6)m(y6)49a2 4x236y236n236 (6x6y)2(xy)22580b64b2 (mn)28m(mn)16m26

10、4y296y36 16a28a(mn)(mn)2x210x21 x26x2716x240x24 1664b210a330a 16abc10bc14p(5a)8q(5a) 8(5a)m(5a)6436b2 4x236y225n29 (7x5y)2(7x7y)22550y25y2 (ab)26m(ab)9m216n248n36 9a26a(mn)(mn)2x215x54 x28x204x239x27 494n245a4100a4b 10ab2c20b312q(x4)40p(x4) 4(x4)m(x4)6425b2 18x28y24x2144 (2xy)2(xy)2116m64m2 (ab)24m(

11、ab)4m281x236x4 4a24a(ab)(ab)2x26x8 x26x79x236x36 6425m275a330a2b 14ab3c20b2c14p(5b)8q(5b) 8(5b)m(5b)10064y2 2x218y216y2121 (2xy)2(6xy)2100100y25y2 (ab)210m(ab)25m216y224y9 25a210a(ab)(ab)2x217x72 x26x716x232x15 494y220a470ab 12abc30bc8p(7b)12p(7b) 6(7b)m(7b)3681y2 27x23y24y264 (x6y)2(9x9y)216x9x2 (xy)24m(xy)4m249a214a1 36a212a(mn)(mn)2x214x48 x21x3016x264x60 964m25a470a4b 14a3b2c40b312q(x9)4q(x9) 6(x9)m(x9)