初二数学上册因式分解练习题大全81.docx

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初二数学上册因式分解练习题大全81.docx

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初二数学上册因式分解练习题大全81.docx

初二数学上册因式分解练习题大全81

55a+10a24abc+100bc

10q(5-b)+36q(5-b)2(5-b)-m(5-b)

100-36a22x2-50y2

49n2-1(x-5y)2-(x-y)2

1-20a+100a2(m-n)2-4m(m-n)+4m2

9b2-42b+4936a2-12a(a-b)+(a-b)2

x2-9x+20x2+3x-18

5x2+23x+12100-9m2

50a+30a4b12a2bc+80b2

12p(1-a)-8q(1-a)6(1-a)+m(1-a)

100-81x227x2-3y2

0.25m2-64(x+y)2-(5x+7y)2

81+180y+100y2(m-n)2+12m(m-n)+36m2

100b2-120b+3616a2+8a(m+n)+(m+n)2

x2+14x+48x2-3x-40

5x2-42x+4964-81a2

90a3+30a3b4a3bc+50bc

4q(9-a)+32p(9-a)2(9-a)+m(9-a)

1-9n28x2-8y2

0.16n2-9(x-5y)2-(x-9y)2

36-48b+16b2(m-n)2+10m(m-n)+25m2

81n2+108n+364a2-4a(m-n)+(m-n)2

x2+10x+9x2+7x-18

4x2+18x+2081-25n2

50a4+20a4a3b2c-60bc

2q(4-a)-20p(4-a)8(4-a)+m(4-a)

81-49n275x2-75y2

0.04a2-49(7x-3y)2-(x+y)2

49-84y+36y2(m-n)2+10m(m-n)+25m2

36m2-72m+3616a2-8a(a+b)+(a+b)2

x2+8x+16x2+7x-18

6x2+11x+381-100a2

80a2-80a2b20abc+50b

12q(x-8)-8p(x-8)4(x-8)+m(x-8)

36-25x28x2-8y2

0.64m2-16(8x-y)2-(7x+9y)2

81+162b+81b2(a-b)2+10m(a-b)+25m2

64x2-160x+10025a2+10a(m+n)+(m+n)2

x2+13x+40x2-6x-40

10x2+25x+1049-49a2

90a2+30ab2abc+20b4

10p(5+a)+8p(5+a)8(5+a)+m(5+a)

100-49n23x2-3y2

49n2-121(x+2y)2-(x-9y)2

64+128a+64a2(a-b)2-12m(a-b)+36m2

49y2+28y+416a2+8a(x+y)+(x+y)2

x2+13x+36x2+2x-24

16x2+32x+12100-16n2

60a-70a20a2b2c-30b3c

6q(7-b)+20q(7-b)6(7-b)+m(7-b)

16-9m22x2-50y2

0.36a2-16(7x-2y)2-(5x-y)2

9+12m+4m2(a+b)2-10m(a+b)+25m2

100n2-160n+6416a2-8a(m-n)+(m-n)2

x2-10x+16x2-5x-14

15x2+44x+2164-36y2

50a3+40a2abc-100bc

2p(y-7)-16q(y-7)2(y-7)+m(y-7)

81-49n22x2-2y2

4y2-121(x-5y)2-(x+10y)2

100+80a+16a2(a-b)2+8m(a-b)+16m2

49m2-42m+925a2-10a(a-b)+(a-b)2

x2+8x+15x2-7x-8

4x2+43x+3064-9b2

40a4-50ab16a4b3c+10b3

4p(x-8)+4p(x-8)8(x-8)+m(x-8)

49-64y22x2-2y2

16x2-225(x+5y)2-(x-7y)2

64-160y+100y2(x+y)2-10m(x+y)+25m2

4y2+20y+2525a2+10a(m+n)+(m+n)2

x2+5x+4x2+9x-10

3x2+39x+901-81x2

65a-40ab14a4bc+10b3

4p(4+b)+24q(4+b)8(4+b)+m(4+b)

64-49n23x2-48y2

25x2-144(6x+y)2-(6x+9y)2

4-8a+4a2(m+n)2+10m(m+n)+25m2

49a2-70a+2525a2+10a(a-b)+(a-b)2

x2-16x+63x2+4x-32

12x2-13x+31-4x2

65a+90a2b12a4b3c+80b

16p(2+b)+36p(2+b)2(2+b)+m(2+b)

25-100n264x2-36y2

25x2-144(x+y)2-(9x+8y)2

1-20x+100x2(a+b)2-10m(a+b)+25m2

16y2+40y+2516a2+8a(x-y)+(x-y)2

x2-5x+6x2-2x-24

10x2+42x+81-49y2

55a-20a6ab2c-20bc

14p(7-b)+40q(7-b)2(7-b)-m(7-b)

64-25y275x2-27y2

0.49a2-36(4x-y)2-(x-7y)2

100+60a+9a2(m-n)2-6m(m-n)+9m2

100n2+100n+2516a2+8a(x-y)+(x-y)2

x2+10x+16x2-7x-30

9x2-45x+5036-16a2

25a-40a410ab3c+70bc

10q(2+a)-16p(2+a)4(2+a)+m(2+a)

36-16b227x2-75y2

16x2-100(3x+y)2-(x+y)2

49-126b+81b2(m+n)2+12m(m+n)+36m2

100a2+160a+6436a2+12a(x+y)+(x+y)2

x2+11x+28x2+6x-27

6x2-29x+3549-81a2

25a+30a3b8ab3c-50b

2q(x-6)+32p(x-6)6(x-6)-m(x-6)

64-81x218x2-18y2

0.04m2-121(6x+3y)2-(x+y)2

81-90n+25n2(m-n)2-8m(m-n)+16m2

49n2-28n+44a2+4a(x-y)+(x-y)2

x2-13x+40x2-4x-21

4x2+33x+825-49a2

35a+20ab2a4bc-30b3c

6q(y-2)-40p(y-2)6(y-2)+m(y-2)

1-36x22x2-2y2

64b2-1(x-y)2-(8x-8y)2

81-36m+4m2(m-n)2-12m(m-n)+36m2

64x2-16x+116a2+8a(x+y)+(x+y)2

x2+10x+16x2-1x-30

3x2-32x+6436-100b2

25a-100ab8a4bc-10b4

12p(y+3)-40q(y+3)2(y+3)+m(y+3)

1-100m275x2-3y2

36y2-1(x+5y)2-(8x+8y)2

81+72b+16b2(x+y)2+8m(x+y)+16m2

9y2-42y+4916a2+8a(x+y)+(x+y)2

x2+6x+5x2+4x-21

2x2-25x+6325-100m2

40a4+20ab2abc+90b2

10p(x-8)-36p(x-8)4(x-8)+m(x-8)

1-36m218x2-8y2

0.49y2-100(2x+5y)2-(x+y)2

16+64b+64b2(m-n)2+6m(m-n)+9m2

36n2+120n+10025a2+10a(x+y)+(x+y)2

x2+7x+12x2+4x-21

8x2+20x+89-64m2

70a3+60a3b2a4b2c-20b3c

16q(y+6)+36p(y+6)4(y+6)-m(y+6)

4-49b236x2-36y2

9b2-4(x+4y)2-(x+y)2

4+32x+64x2(m-n)2-10m(m-n)+25m2

36x2-108x+8116a2-8a(a+b)+(a+b)2

x2-14x+45x2+7x-8

3x2+16x+5100-100x2

55a2-20ab4a4b2c+90b2c

10p(9+a)+28p(9+a)6(9+a)+m(9+a)

49-4y216x2-4y2

0.09b2-9(5x-2y)2-(5x+10y)2

64-80a+25a2(a-b)2-12m(a-b)+36m2

4m2-12m+925a2-10a(x-y)+(x-y)2

x2+11x+30x2-6x-16

2x2+19x+241-81m2

75a4+100a3b10a2bc+10bc

16p(x-3)+28p(x-3)4(x-3)+m(x-3)

64-49m218x2-32y2

0.25n2-144(9x+5y)2-(7x+10y)2

36-84a+49a2(x-y)2+10m(x-y)+25m2

16y2+56y+4916a2-8a(x+y)+(x+y)2

x2-5x+6x2-3x-18

3x2+12x+1264-100x2

30a+90a8a3b3c+100b

8q(x+5)+40p(x+5)2(x+5)-m(x+5)

1-4n264x2-36y2

0.25y2-36(7x-3y)2-(x+y)2

1+14x+49x2(a+b)2-4m(a+b)+4m2

16x2+48x+3636a2-12a(m-n)+(m-n)2

x2+16x+63x2-8x-9

6x2-19x+15100-100y2

10a+80a16ab3c+10b3c

20p(y-4)+16p(y-4)2(y-4)+m(y-4)

25-81n22x2-8y2

36n2-100(4x+y)2-(x-y)2

64-96b+36b2(m+n)2+6m(m+n)+9m2

64b2-16b+136a2+12a(a-b)+(a-b)2

x2+15x+56x2+8x-9

2x2+21x+2716-100b2

40a-30a3b2a2bc-20b4c

4p(9+b)+40q(9+b)2(9+b)+m(9+b)

36-81y22x2-50y2

0.64m2-9(9x-y)2-(x-y)2

9+48n+64n2(a-b)2+4m(a-b)+4m2

9a2-60a+1009a2-6a(x-y)+(x-y)2

x2+6x+5x2+6x-7

6x2+25x+2425-36y2

55a3+10a28abc+40b4

12p(x+6)+40p(x+6)2(x+6)-m(x+6)

64-81n227x2-12y2

0.81x2-196(x-y)2-(x-y)2

16+16y+4y2(x-y)2+6m(x-y)+9m2

25y2+80y+6416a2+8a(m-n)+(m-n)2

x2-12x+36x2+4x-12

16x2-72x+811-4n2

90a3-50a10ab3c+10b

12q(1+a)-12q(1+a)8(1+a)+m(1+a)

64-64a23x2-48y2

0.49y2-16(6x-6y)2-(4x-y)2

49+84x+36x2(a-b)2-8m(a-b)+16m2

4n2-8n+49a2-6a(x+y)+(x+y)2

x2+17x+72x2-6x-27

16x2+56x+4916-9x2

85a+100a4b16ab3c-50b

20p(x+3)-20p(x+3)8(x+3)-m(x+3)

9-16b250x2-32y2

0.64b2-49(8x+2y)2-(x-y)2

16-72m+81m2(m-n)2-6m(m-n)+9m2

25y2+20y+416a2-8a(x+y)+(x+y)2

x2-11x+24x2+3x-40

6x2-12x+61-16a2

15a+40ab16a4bc-100b

18p(2+a)-36p(2+a)4(2+a)+m(2+a)

36-16x250x2-50y2

4a2-324(x-5y)2-(9x-y)2

9-24y+16y2(x-y)2-4m(x-y)+4m2

4a2-32a+6416a2-8a(a+b)+(a+b)2

x2-8x+12x2-9x-10

15x2+62x+409-81x2

25a-60a410a3bc+60b

16p(7-a)-4q(7-a)4(7-a)+m(7-a)

49-25a23x2-27y2

0.64n2-121(4x+2y)2-(x+y)2

25+70x+49x2(m+n)2-12m(m+n)+36m2

81y2-144y+6436a2-12a(x+y)+(x+y)2

x2+12x+32x2-7x-30

2x2+14x+24100-81x2

95a+10a14abc+100b4c

12p(x-1)-16q(x-1)4(x-1)+m(x-1)

36-25n250x2-18y2

0.25y2-36(4x+y)2-(4x-9y)2

16-32b+16b2(x-y)2-12m(x-y)+36m2

64b2+80b+2525a2-10a(m+n)+(m+n)2

x2+3x+2x2+5x-6

12x2-34x+101-16m2

90a-10a4b6a2b3c+100b2c

16q(x-6)-24q(x-6)6(x-6)+m(x-6)

25-25n22x2-32y2

0.09n2-144(5x+4y)2-(2x-8y)2

1+10a+25a2(m+n)2-4m(m+n)+4m2

64x2-144x+8125a2+10a(a+b)+(a+b)2

x2+13x+42x2-5x-36

12x2+56x+649-36n2

15a2+40a4b10abc-20b

12q(6-b)+8p(6-b)2(6-b)-m(6-b)

64-9a22x2-50y2

0.25n2-36(x-4y)2-(x+y)2

81+36b+4b2(m-n)2+4m(m-n)+4m2

64b2-144b+814a2-4a(m+n)+(m+n)2

x2-11x+24x2-9x-10

4x2-24x+209-25m2

60a3+40a4b8ab3c+90b4c

18q(x-7)-24q(x-7)8(x-7)+m(x-7)

36-81a22x2-2y2

0.36a2-196(x-y)2-(3x+y)2

16-56n+49n2(a-b)2+10m(a-b)+25m2

81x2+90x+2536a2+12a(m+n)+(m+n)2

x2+11x+18x2-1x-30

9x2+57x+9025-100b2

45a4+50a14abc-80b3c

4p(5-a)+12q(5-a)8(5-a)+m(5-a)

64-100b218x2-50y2

0.09x2-225(2x+6y)2-(x-y)2

4+32m+64m2(x-y)2+12m(x-y)+36m2

4b2-36b+8116a2+8a(m-n)+(m-n)2

x2+9x+14x2-2x-24

8x2+42x+5481-36x2

95a-30ab20a4b3c+10bc

2q(2+b)-16p(2+b)6(2+b)-m(2+b)

49-81n22x2-8y2

64n2-324(6x-5y)2-(7x-10y)2

9-12y+4y2(a-b)2-12m(a-b)+36m2

81x2+180x+10025a2+10a(a-b)+(a-b)2

x2+9x+18x2-3x-40

12x2+39x+30100-16n2

75a+60a20abc-80bc

4q(x+3)-16q(x+3)8(x+3)-m(x+3)

4-49y212x2-75y2

25a2-121(3x+y)2-(x-10y)2

9-60a+100a2(x-y)2+10m(x-y)+25m2

36x2-12x+136a2+12a(a+b)+(a+b)2

x2-12x+36x2+6x-27

10x2-50x+4064-64b2

10a-30a44a3bc-80bc

16p(x+7)+12q(x+7)6(x+7)+m(x+7)

4-49a216x2-16y2

0.64a2-144(8x-2y)2-(x+9y)2

36+72a+36a2(x+y)2+12m(x+y)+36m2

4x2-8x+416a2+8a(x-y)+(x-y)2

x2-13x+36x2+3x-40

6x2-35x+499-36a2

10a3+20a34a3bc-90b

14q(1+b)+32p(1+b)6(1+b)+m(1+b)

9-4n250x2-2y2

4x2-400(x+3y)2-(x-y)2

64-32x+4x2(x+y)2+8m(x+y)+16m2

25n2+100n+10025a2+10a(a-b)+(a-b)2

x2+11x+28x2+4x-32

8x2+34x+2181-81b2

70a-60a2b12ab2c-70bc

14q(5-a)+12q(5-a)2(5-a)+m(5-a)

1-49x232x2-32y2

0.81x2-16(x-y)2-(x-10y)2

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