求20道因式分解计算题,20道整式乘法计算题,20道二元一次方程组计算题,20道不等式组计算题,要有答案的

求20道因式分解计算题,20道整式乘法计算题,20道二元一次方程组计算题,20道不等式组计算题,都要有答案的,注明标点符号代表的是什么数学符号 谢谢 急需 求~~~~~~~~~~!!!!!!!!!而且要标明这是二元一次方程组还是什么题 要不我会混 谢谢!!!!!

    因式分解

a2(b2-c2)-c2(b-c)(a+b)=_________. 

(a-2b)(3a+4b)+(2a-4b)(2a-3b)=(a-2b)·(    ).

(2x+1)y2+(2x+1)2y=_________

(x-y)n-(x-y)n-2=(x-y)n-2·_________.

m(a-m)(a-n)-n(m-a)(a-n)=_________. 

x(m-n)+(n-m)y-z(m-n)=(m-n)(    ).

(x+2y)(3x2-4y2)-(x+2y)2(x-2y)=________.

21a3b-35a2b3=_________. 

3x2yz+15xz2-9xy2z=__________.

x2 -2xy-35y2 =(x-7y)(    ).

2x2-7x-15=(x-5)(    ). 

20x2-43xy+14y2=(4x-7y)(    ).

18x2-19x+5=(    )(2x-1).

6x2-13x+6=(    )(    ).

5x2 +4xy-28y2 =(    )(    ).

-35m2 n2 +11mn+6=-(    )(    ).

6+11a-35a2=(    )(    ).

6-11a-35a2=(    )(    ).

-1+y+20y2 =(    )(    ). 

20x2+(    )+14y2=(4x-7y)(5x-2y).

x2-3xy-(    )=(x-7y)(x+4y).

x2 +(    )-28y2 =(x+7y)(x-4y).

x2+(    )-21y2=(x-7y)(x+3y).

kx2+5x-6=(3x-2)(    ),k=______. 

6x2+5x-k=(3x-2)(    ),k=______.

6x2+kx-6=(3x-2)(    ),k=______. 

18x2-19x+5=(9x+m)(2x+n),则m=_____,n=_____.

18x2 +19x+m=(9x+5)(2x+n),则m=_____,n=_____.

20x2 -43xy+14y2 =(4x+m)(5x+n),则m=_____,n=_____.

20x2-43xy+m=(4x-7y)(5x+n),则m=_____,n=_____.   

x4-4x3+4x2 -1=_______.

2x2 -3x-6xy+9y=________. 

21a2 x-9ax2 +6xy2 -14ay2 =________.

a3+a2b+a2c+abc=________. 

2(a2-3ac)+a(4b-3c)=_________.

27x3 +54x2 y+36xy2 +8y3 _______.

(x+y)2+(x+m)2-(m+n)2-(y+n)2=_______.

25x2 -4a2 +12ab-9b2 =_______.

a2-c2+2ab+b2-d2-2cd=_______.

x4 +2x2 +1-x2 -2ax-a2 =________.   

a2-4b2-4c2-8bc=__________.

a2+b2+4a-4b-2ab+4=________.

 

2.不等式组

1.5.2-5x<=3(1-x)
     (x+2)/3>2x-1

 

2.5x-3>x-4            

   1+2/3-x<=x-1/3 

 

3、5X+6<3X
      8-7X>4-5X

4、2(1+X)>3(X-7)
     4(2X-3)>5(X+2)

5、2X<4
      X+3>0

6、1-X>0
       X+2<0

7、5+2X>3
      X+2<8

8、2X+4<0
1/2(X+8)-2>0

9、5X-2≥3(X+1)
1/2X+1>3/2X-3

10、1+1/2X>2
        2(X-3)≤4


1. 3x(x+5)>3x2+7
    x-4 < 2x+1

2. 3x+14 > 4(2x-9) 
    3x-7≥4x-4

3. 2x-3x-3<6 
    0.4(x-1)≥0.3-0.9x

4. x-4 < 2x+1
    2x-6 < x-2

5. 3×10x<500
    7(X+3)>98

6. 2x-3x+3<6
    2x-3x+1<6

7. 2x-3x+3<1
2x-19<7x+31

8. 3x-2(9-x)>3(7+2x)-(11-6x)
2(3x-1)-3(4x+5)≤x-4(x-7)

9. 2(x-1)-x>3(x-1)-3x-5
15-(7+5x)≤2x+(5-3x)

 

10.2x-3>0

     4-3x<0

 

3.乘法计算题

3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -( 3/2 + 4/5 )
8. 7/8 + ( 1/8 + 1/9 )
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
11. 7 × 5/49 + 3/14
12. 6 ×( 1/2 + 2/3 )
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - ( 2/7 – 10/21 )
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3

4.二元一次方程组

1.2x+9y=81
   3x+y=34

2.9x+4y=35
   8x+3y=30

3.7x+2y=52
   7x+4y=62

4.4x+6y=54
   9x+2y=87

5.2x+y=7
   2x+5y=19

6.x+2y=21
   3x+5y=56

7.5x+7y=52
    5x+2y=22

8.5x+5y=65
7x+7y=203

9.8x+4y=56
   x+4y=21

10.5x+7y=41
     5x+8y=44

11.7x+5y=54
     3x+4y=38

12.x+8y=15
     4x+y=29

13.3x+6y=24
      9x+5y=46

14.9x+2y=62
     4x+3y=36

15.9x+4y=46
     7x+4y=42

16.9x+7y=135
     4x+y=41

17.3x+8y=51
     x+6y=27

18.9x+3y=99
     4x+7y=95

19.9x+2y=38
     3x+6y=18

20.5x+5y=45
     7x+9y=69

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第1个回答  2013-07-27
1. 2X+3Y=4
2X-3Y=6
2. 3(X-1)=Y+5
5(Y-1)=3(X+5)
3. X/2-(Y-2)/6=(X+Y)/3+1
(X-6)/10+Y=X/2+21/5
4. 2x+3y=13
3x+2y=12
5. 5x+8y=71
7x+y=28
6. 3x+4=6y
y-4x=4
7. 2X+3Y=11
Y-2X=1
8. 2X-3Y=5
2X-8Y=3
9. 3X-2Y=6
2X-5Y=4
10. 4X+3Y=6
2X+Y=4
只有100道1) 66x+17y=3967
25x+y=1200
答案:x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案:x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案:x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案:x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案:x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案:x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案:x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案:x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案:x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案:x=26 y=62
(11) 85x-92y=-2518
27x-y=486
答案:x=18 y=44
(12) 79x+40y=2419
56x-y=1176
答案:x=21 y=19
(13) 80x-87y=2156
22x-y=880
答案:x=40 y=12
(14) 32x+62y=5134
57x+y=2850
答案:x=50 y=57
(15) 83x-49y=82
59x+y=2183
答案:x=37 y=61
(16) 91x+70y=5845
95x-y=4275
答案:x=45 y=25
(17) 29x+44y=5281
88x-y=3608
答案:x=41 y=93
(18) 25x-95y=-4355
40x-y=2000
答案:x=50 y=59
(19) 54x+68y=3284
78x+y=1404
答案:x=18 y=34
(20) 70x+13y=3520
52x+y=2132
答案:x=41 y=50
(21) 48x-54y=-3186
24x+y=1080
答案:x=45 y=99
(22) 36x+77y=7619
47x-y=799
答案:x=17 y=91
(23) 13x-42y=-2717
31x-y=1333
答案:x=43 y=78
(24) 28x+28y=3332
52x-y=4628
答案:x=89 y=30
(25) 62x-98y=-2564
46x-y=2024
答案:x=44 y=54
(26) 79x-76y=-4388
26x-y=832
答案:x=32 y=91
(27) 63x-40y=-821
42x-y=546
答案:x=13 y=41
(28) 69x-96y=-1209
42x+y=3822
答案:x=91 y=78
(29) 85x+67y=7338
11x+y=308
答案:x=28 y=74
(30) 78x+74y=12928
14x+y=1218
答案:x=87 y=83
(31) 39x+42y=5331
59x-y=5841
答案:x=99 y=35
(32) 29x+18y=1916
58x+y=2320
答案:x=40 y=42
(33) 40x+31y=6043
45x-y=3555
答案:x=79 y=93
(34) 47x+50y=8598
45x+y=3780
答案:x=84 y=93
(35) 45x-30y=-1455
29x-y=725
答案:x=25 y=86
(36) 11x-43y=-1361
47x+y=799
答案:x=17 y=36
(37) 33x+59y=3254
94x+y=1034
答案:x=11 y=49
(38) 89x-74y=-2735
68x+y=1020
答案:x=15 y=55
(39) 94x+71y=7517
78x+y=3822
答案:x=49 y=41
(40) 28x-62y=-4934
46x+y=552
答案:x=12 y=85
(41) 75x+43y=8472
17x-y=1394
答案:x=82 y=54
(42) 41x-38y=-1180
29x+y=1450
答案:x=50 y=85
(43) 22x-59y=824
63x+y=4725
答案:x=75 y=14
(44) 95x-56y=-401
90x+y=1530
答案:x=17 y=36
(45) 93x-52y=-852
29x+y=464
答案:x=16 y=45
(46) 93x+12y=8823
54x+y=4914
答案:x=91 y=30
(47) 21x-63y=84
20x+y=1880
答案:x=94 y=30
(48) 48x+93y=9756
38x-y=950
答案:x=25 y=92
(49) 99x-67y=4011
75x-y=5475
答案:x=73 y=48
(50) 83x+64y=9291
90x-y=3690
答案:x=41 y=92

(51) 17x+62y=3216
75x-y=7350
答案:x=98 y=25
(52) 77x+67y=2739
14x-y=364
答案:x=26 y=11
(53) 20x-68y=-4596
14x-y=924
答案:x=66 y=87
(54) 23x+87y=4110
83x-y=5727
答案:x=69 y=29
(55) 22x-38y=804
86x+y=6708
答案:x=78 y=24
(56) 20x-45y=-3520
56x+y=728
答案:x=13 y=84
(57) 46x+37y=7085
61x-y=4636
答案:x=76 y=97
(58) 17x+61y=4088
71x+y=5609
答案:x=79 y=45
(59) 51x-61y=-1907
89x-y=2314
答案:x=26 y=53
(60) 69x-98y=-2404
21x+y=1386
答案:x=66 y=71
(61) 15x-41y=754
74x-y=6956
答案:x=94 y=16
(62) 78x-55y=656
89x+y=5518
答案:x=62 y=76
(63) 29x+21y=1633
31x-y=713
答案:x=23 y=46
(64) 58x-28y=2724
35x+y=3080
答案:x=88 y=85
(65) 28x-63y=-2254
88x-y=2024
答案:x=23 y=46
(66) 43x+50y=7064
85x+y=8330
答案:x=98 y=57
(67) 58x-77y=1170
38x-y=2280
答案:x=60 y=30
(68) 92x+83y=11586
43x+y=3010
答案:x=70 y=62
(69) 99x+82y=6055
52x-y=1716
答案:x=33 y=34
(70) 15x+26y=1729
94x+y=8554
答案:x=91 y=14
(71) 64x+32y=3552
56x-y=2296
答案:x=41 y=29
(72) 94x+66y=10524
84x-y=7812
答案:x=93 y=27
(73) 65x-79y=-5815
89x+y=2314
答案:x=26 y=95
(74) 96x+54y=6216
63x-y=1953
答案:x=31 y=60
(75) 60x-44y=-352
33x-y=1452
答案:x=44 y=68
(76) 79x-45y=510
14x-y=840
答案:x=60 y=94
(77) 29x-35y=-218
59x-y=4897
答案:x=83 y=75
(78) 33x-24y=1905
30x+y=2670
答案:x=89 y=43
(79) 61x+94y=11800
93x+y=5952
答案:x=64 y=84
(80) 61x+90y=5001
48x+y=2448
答案:x=51 y=21
(81) 93x-19y=2
86x-y=1548
答案:x=18 y=88
(82) 19x-96y=-5910
30x-y=2340
答案:x=78 y=77
(83) 80x+74y=8088
96x-y=8640
答案:x=90 y=12
(84) 53x-94y=1946
45x+y=2610
答案:x=58 y=12
(85) 93x+12y=9117
28x-y=2492
答案:x=89 y=70
(86) 66x-71y=-1673
99x-y=7821
答案:x=79 y=97
(87) 43x-52y=-1742
76x+y=1976
答案:x=26 y=55
(88) 70x+35y=8295
40x+y=2920
答案:x=73 y=91
(89) 43x+82y=4757
11x+y=231
答案:x=21 y=47
(90) 12x-19y=236
95x-y=7885
答案:x=83 y=40
(91) 51x+99y=8031
71x-y=2911
答案:x=41 y=60
(92) 37x+74y=4403
69x-y=6003
答案:x=87 y=16
(93) 46x+34y=4820
71x-y=5183
答案:x=73 y=43
(94) 47x+98y=5861
55x-y=4565
答案:x=83 y=20
(95) 30x-17y=239
28x+y=1064
答案:x=38 y=53
(96) 55x-12y=4112
79x-y=7268
答案:x=92 y=79
(97) 27x-24y=-450
67x-y=3886
答案:x=58 y=84
(98) 97x+23y=8119
14x+y=966
答案:x=69 y=62
(99) 84x+53y=11275
70x+y=6790
答案:x=97 y=59
(100) 51x-97y=297
19x-y=1520
答案:x=80 y=39 方程组,其他的自己出吧