誰能幫我找100道一元二次方程的計算題?(帶解答過程的)

2021-05-02 22:14:33 字數 10040 閱讀 8153

1樓:匿名使用者

(1)x^2-9x+8=0 答案:x1=8 x2=1

(2)x^2+6x-27=0 答案:x1=3 x2=-9

(3)x^2-2x-80=0 答案:x1=-8 x2=10

(4)x^2+10x-200=0 答案:x1=-20 x2=10

(5)x^2-20x+96=0 答案:x1=12 x2=8

(6)x^2+23x+76=0 答案:x1=-19 x2=-4

(7)x^2-25x+154=0 答案:x1=14 x2=11

(8)x^2-12x-108=0 答案:x1=-6 x2=18

(9)x^2+4x-252=0 答案:x1=14 x2=-18

(10)x^2-11x-102=0 答案:x1=17 x2=-6

(11)x^2+15x-54=0 答案:x1=-18 x2=3

(12)x^2+11x+18=0 答案:x1=-2 x2=-9

(13)x^2-9x+20=0 答案:x1=4 x2=5

(14)x^2+19x+90=0 答案:x1=-10 x2=-9

(15)x^2-25x+156=0 答案:x1=13 x2=12

(16)x^2-22x+57=0 答案:x1=3 x2=19

(17)x^2-5x-176=0 答案:x1=16 x2=-11

(18)x^2-26x+133=0 答案:x1=7 x2=19

(19)x^2+10x-11=0 答案:x1=-11 x2=1

(20)x^2-3x-304=0 答案:x1=-16 x2=19

(21)x^2+13x-140=0 答案:x1=7 x2=-20

(22)x^2+13x-48=0 答案:x1=3 x2=-16

(23)x^2+5x-176=0 答案:x1=-16 x2=11

(24)x^2+28x+171=0 答案:x1=-9 x2=-19

(25)x^2+14x+45=0 答案:x1=-9 x2=-5

(26)x^2-9x-136=0 答案:x1=-8 x2=17

(27)x^2-15x-76=0 答案:x1=19 x2=-4

(28)x^2+23x+126=0 答案:x1=-9 x2=-14

(29)x^2+9x-70=0 答案:x1=-14 x2=5

(30)x^2-1x-56=0 答案:x1=8 x2=-7

(31)x^2+7x-60=0 答案:x1=5 x2=-12

(32)x^2+10x-39=0 答案:x1=-13 x2=3

(33)x^2+19x+34=0 答案:x1=-17 x2=-2

(34)x^2-6x-160=0 答案:x1=16 x2=-10

(35)x^2-6x-55=0 答案:x1=11 x2=-5

(36)x^2-7x-144=0 答案:x1=-9 x2=16

(37)x^2+20x+51=0 答案:x1=-3 x2=-17

(38)x^2-9x+14=0 答案:x1=2 x2=7

(39)x^2-29x+208=0 答案:x1=16 x2=13

(40)x^2+19x-20=0 答案:x1=-20 x2=1

(41)x^2-13x-48=0 答案:x1=16 x2=-3

(42)x^2+10x+24=0 答案:x1=-6 x2=-4

(43)x^2+28x+180=0 答案:x1=-10 x2=-18

(44)x^2-8x-209=0 答案:x1=-11 x2=19

(45)x^2+23x+90=0 答案:x1=-18 x2=-5

(46)x^2+7x+6=0 答案:x1=-6 x2=-1

(47)x^2+16x+28=0 答案:x1=-14 x2=-2

(48)x^2+5x-50=0 答案:x1=-10 x2=5

(49)x^2+13x-14=0 答案:x1=1 x2=-14

(50)x^2-23x+102=0 答案:x1=17 x2=6

(51)x^2+5x-176=0 答案:x1=-16 x2=11

(52)x^2-8x-20=0 答案:x1=-2 x2=10

(53)x^2-16x+39=0 答案:x1=3 x2=13

(54)x^2+32x+240=0 答案:x1=-20 x2=-12

(55)x^2+34x+288=0 答案:x1=-18 x2=-16

(56)x^2+22x+105=0 答案:x1=-7 x2=-15

(57)x^2+19x-20=0 答案:x1=-20 x2=1

(58)x^2-7x+6=0 答案:x1=6 x2=1

(59)x^2+4x-221=0 答案:x1=13 x2=-17

(60)x^2+6x-91=0 答案:x1=-13 x2=7

(61)x^2+8x+12=0 答案:x1=-2 x2=-6

(62)x^2+7x-120=0 答案:x1=-15 x2=8

(63)x^2-18x+17=0 答案:x1=17 x2=1

(64)x^2+7x-170=0 答案:x1=-17 x2=10

(65)x^2+6x+8=0 答案:x1=-4 x2=-2

(66)x^2+13x+12=0 答案:x1=-1 x2=-12

(67)x^2+24x+119=0 答案:x1=-7 x2=-17

(68)x^2+11x-42=0 答案:x1=3 x2=-14

(69)x^20x-289=0 答案:x1=17 x2=-17

(70)x^2+13x+30=0 答案:x1=-3 x2=-10

(71)x^2-24x+140=0 答案:x1=14 x2=10

(72)x^2+4x-60=0 答案:x1=-10 x2=6

(73)x^2+27x+170=0 答案:x1=-10 x2=-17

(74)x^2+27x+152=0 答案:x1=-19 x2=-8

(75)x^2-2x-99=0 答案:x1=11 x2=-9

(76)x^2+12x+11=0 答案:x1=-11 x2=-1

(77)x^2+17x+70=0 答案:x1=-10 x2=-7

(78)x^2+20x+19=0 答案:x1=-19 x2=-1

(79)x^2-2x-168=0 答案:x1=-12 x2=14

(80)x^2-13x+30=0 答案:x1=3 x2=10

(81)x^2-10x-119=0 答案:x1=17 x2=-7

(82)x^2+16x-17=0 答案:x1=1 x2=-17

(83)x^2-1x-20=0 答案:x1=5 x2=-4

(84)x^2-2x-288=0 答案:x1=18 x2=-16

(85)x^2-20x+64=0 答案:x1=16 x2=4

(86)x^2+22x+105=0 答案:x1=-7 x2=-15

(87)x^2+13x+12=0 答案:x1=-1 x2=-12

(88)x^2-4x-285=0 答案:x1=19 x2=-15

(89)x^2+26x+133=0 答案:x1=-19 x2=-7

(90)x^2-17x+16=0 答案:x1=1 x2=16

(91)x^2+3x-4=0 答案:x1=1 x2=-4

(92)x^2-14x+48=0 答案:x1=6 x2=8

(93)x^2-12x-133=0 答案:x1=19 x2=-7

(94)x^2+5x+4=0 答案:x1=-1 x2=-4

(95)x^2+6x-91=0 答案:x1=7 x2=-13

(96)x^2+3x-4=0 答案:x1=-4 x2=1

(97)x^2-13x+12=0 答案:x1=12 x2=1

(98)x^2+7x-44=0 答案:x1=-11 x2=4

(99)x^2-6x-7=0 答案:x1=-1 x2=7

(100)x^2-9x-90=0 答案:x1=15 x2=-6

(101)x^2+17x+72=0 答案:x1=-8 x2=-9

(102)x^2+13x-14=0 答案:x1=-14 x2=1

(103)x^2+9x-36=0 答案:x1=-12 x2=3

(104)x^2-9x-90=0 答案:x1=-6 x2=15

(105)x^2+14x+13=0 答案:x1=-1 x2=-13

(106)x^2-16x+63=0 答案:x1=7 x2=9

(107)x^2-15x+44=0 答案:x1=4 x2=11

(108)x^2+2x-168=0 答案:x1=-14 x2=12

(109)x^2-6x-216=0 答案:x1=-12 x2=18

(110)x^2-6x-55=0 答案:x1=11 x2=-5

(111)x^2+18x+32=0 答案:x1=-2 x2=-16

2樓:匿名使用者

我也需要哦、、咱們老師估計小時候一個班的。。。。。希望快點有回答

幫我找50道一元二次方程計算題和50道二次根式計算題(帶答案過程哦)。

3樓:百度使用者

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 1 2x-10.3x=15 2 0.

52x-(1-0.52)x=80 3 x/2+3x/2=7 4 3x+7=32-2x 5 3x+5(138-x)=540 6 3x-7(x-1)=3-2(x+3) 7 18x+3x-3=18-2(2x-1) 8 3(20-y)=6y-4(y-11) 9 -(x/4-1)=5 10 3[4(5y-1)-8]=6 11 10/3 (x/5+3/7)=9x/2 12 5/3(x+0.5)+2=3x-6 13 5x+2(2x/3+2)=2/3(x-6)+2 14 (2x-7)/2-(6x-5)/3=2x+3 15 (3x+2)/5-(x-6)=x/3 16 6x-(x/3+2)=2(x/5+5/2)-3 17 3(x/11-2)-5=2+3x/3 18 10/3(2x-6)=3/5 19 x/2-(x/3-2)=3 20 2/3(x+3)-3=5x/3 21 5/3(2x-5/3)=2x/5-8/9 22 25(x/3-x/2+2/5)-2=3/5(x-2/7)+4/9 23.

15-(8-5x)=7x+(4-3x) 24. 3(x-7)-2[9-4(2-x)]=22 25. 3/2[2/3(1/4x-1)-2]-x=2 26.

2(x-2)+2=x+1 27. 0.4(x-0.

2)+1.5=0.7x-0.

38 28. 30x-10(10-x)=100 29. 4(x+2)=5(x-2) 30.

120-4(x+5)=25 31. 15x+863-65x=54 32. 12.

3(x-2)+1=x-(2x-1) 33. 11x+64-2x=100-9x 34. 14.

59+x-25.31=0 35. x-48.

32+78.51=80 36. 820-16x=45.

5×8 37. (x-6)×7=2x 38. 3x+x=18 39.

0.8+3.2=7.

2 40. 12.5-3x=6.

5 41. 1.2(x-0.

64)=0.54 42. x+12.

5=3.5x 43. 8x-22.

8=1.2 44. 2(x-2)-3(4x-1)=9(1-x) 45.

11x+64-2x=100-9x 46. (3x+8)/3=41 47. x/4+9x/4=0.

25 48. 15x+8-7x=12 49. 48-(x-3)=2+x 50.

3x/6x+4x=9/2 實數計算題 1. 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 0.12χ+1.

8×0.9=7.2 (9-5χ)×0.

3=1.02 6.4χ-χ=28+4.

4 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 21. 5/7 × 3/25 + 3/7 22.

3/14 ×× 2/3 + 1/6 23. 1/5 × 2/3 + 5/6 24. 9/22 + 1/11 ÷ 1/2 25.

5/3 × 11/5 + 4/3 26. 45 × 2/3 + 1/3 × 15 27. 7/19 + 12/19 × 5/6 28.

1/4 + 3/4 ÷ 2/3 29. 8/7 × 21/16 + 1/2 30. 101 × 1/5 – 1/5 × 21 31.

50+160÷40 (58+370)÷(64-45) 32.120-144÷18+35 33.347+45×2-4160÷52 34(58+37)÷(64-9×5) 35.

95÷(64-45) 36.178-145÷5×6+42 420+580-64×21÷28 37.812-700÷(9+31×11) (136+64)×(65-345÷23) 38.

85+14×(14+208÷26) 39.(284+16)×(512-8208÷18) 40.120-36×4÷18+35 41.

(58+37)÷(64-9×5) 42.(6.8-6.

8×0.55)÷8.5 43.

0.12× 4.8÷0.

12×4.8 44.(3.

2×1.5+2.5)÷1.

6 (2)3.2×(1.5+2.

5)÷1.6 45.6-1.

6÷4= 5.38+7.85-5.

37= 46.7.2÷0.

8-1.2×5= 6-1.19×3-0.

43= 47.6.5×(4.

8-1.2×4)= 0.68×1.

9+0.32×1.9 48.

10.15-10.75×0.

4-5.7 49.5.

8×(3.87-0.13)+4.

2×3.74 50.32.

52-(6+9.728÷3.2)×2.

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