要50至100道一元二次方程题 有详细解题过程的在+50分

慕阳暖暖2022-10-04 11:39:543条回答

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无敌草盖木 共回答了16个问题 | 采纳率87.5%
(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
1年前
ywg1996 共回答了6个问题 | 采纳率
(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 ...
1年前
rowa911 共回答了1个问题 | 采纳率
做这样的题,简直是浪费时间
1年前

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至少要50道,50至100道,100以上给15分.
隐裂1年前8
毛孩 共回答了27个问题 | 采纳率88.9%
7×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
2005-2006学年度三年级数学期末复习口算题(一)
70÷7= 20×10= 320÷5≈ 54×70≈ 251÷4≈ 6300÷7=
131÷4≈ 50×8= 85-45= 0÷5= 280÷4= 60×40=
840-30= 2700÷9= 99×31≈ 3.1+2.7= 131÷4≈ 50×8=
7.8-1.8= 350÷5= 630÷9= 131÷6≈ 10×80= 65-56=
431÷6≈ 15×6= 4.8-0.4= 6.1+0.7= 91×18≈ 257÷4≈
44÷4= 20×40= 210-30= 34+28 = 63- 63÷9= 120÷3×
2005-2006学年度三年级数学期末复习口算题(二)
800÷8= 40×70= 300÷4≈ 59×72≈ 251÷5≈ 630÷7=
131÷6≈ 0×108= 45-18= 0÷15= 120÷4= 30×40=
640-70= 1800÷9= 99×39≈ 5.1+2.6= 411÷4≈ 15×20=
7.3-1.8= 250÷5= 6300÷9= 431÷6≈ 20×80= 78-56=
491÷8≈ 14×6= 4.8-4.4= 6.1+4.7= 91×19≈ 367÷4≈
55÷5= 10×40= 211-30= 134+28 = 50×40-100= 12×20÷
2005-2006学年度三年级数学期末复习口算题(三)
三年____班 姓名______
270÷9= 20×11= 120÷5≈ 44×17≈ 351÷4≈ 420÷7=
231÷4≈ 50×80= 73-45= 0÷25= 1600÷4= 20×40=
840-32= 540÷9= 89×31≈ 0.1+0.8= 371÷4≈ 0×28=
8.3-1.8= 2000÷5= 180÷9= 131÷6≈ 40×80= 85-51=
531÷6≈ 10×60-= 4.5-4.5= 6.8+0.2= 41×19≈ 250÷4≈
270÷3= 11×50= 210-30= 68+28 = 25+25×2= 30÷3×10=
[center][b]2005-2006学年度三年级数学期末复习口算题(四)[/b][/center]
三年____班 姓名______
100÷1= 30×70= 100÷5≈ 19×72≈ 251÷6≈ 140÷7=
234÷6≈ 120×0= 445-15= 0÷85= 200÷4= 300×40=
740-70= 2700÷9= 91×33≈ 4.1+2.4= 419÷4≈ 14×20=
7.8-1.8= 1000÷5= 360÷9= 338÷6≈ 100×80= 98-56=
491÷8≈ 14×6= 4.1-3.1= 6.8+0.7= 11×19≈ 167÷4≈
150÷5= 10×40= 100-30= 96+28 = 51+45-28= 10×20+34=
[center][b]2005-2006学年度三年级数学期末复习口算题(五)[/b][/center]
三年____班 姓名______
70÷7= 20×10= 3200÷5≈ 54×70≈ 251÷4≈ 6300÷7=
131÷4≈ 50×8= 85-45= 0÷5= 280÷4= 60×40=
840-30= 2700÷9= 99×31≈ 3.1+2.7= 131÷4≈ 50×8=
7.8-1.8= 350÷5= 630÷9= 131÷6≈ 10×80= 65-56=
431÷6≈ 15×6= 4.8-0.4= 6.1+0.7= 91×18≈ 257÷4≈
44÷4= 20×40= 210-30= 34+28 = 63- 63÷9= 120÷3×20=
[center][b]2005-2006学年度三年级数学期末复习口算题(六)[/b][/center]
800÷8= 40×70= 300÷5≈ 59×72≈ 251÷5≈ 630÷7=
131÷6≈ 0×108= 45-18= 0÷15= 120÷4= 30×40=
640-70= 1800÷9= 99×39≈ 5.1+2.6= 411÷4≈ 15×20=
7.3-1.8= 250÷5= 6300÷9= 431÷6≈ 20×80= 78-56=
491÷8≈ 14×6= 4.8-4.4= 6.1+4.7= 91×19≈ 367÷4≈
55÷5= 10×40= 211-30= 134+28 = 50×40-100= 12×20÷3=
http://zhidao.baidu.com/q?word=%CA%FD%D1%A7%BF%DA%CB%E3%CC%E2&ct=17&pn=0&tn=ikaslist&rn=10一堆呢
17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06=
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54=
1.01×99= 420÷35= 25×12= 135÷0.5=
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 =
0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4=
4.9×0.7= 1÷5= 6÷12= 0.87-0.49=
关于圣诞的英语作文,不要太多50至100左右
夜嚣1年前1
kele4529 共回答了17个问题 | 采纳率88.2%
the birth of jesus
in nazareth,a city of galilee.the virgins name was mary was betrothed to joseph.before they came together,she was found with child of the holy spirit.joseph her husband was minded to put her away secretly.while he thought about these things,gabriel,an angel of the lord appeared to him in a dream and told him did not be afraid to take mary as wife.and mary will bring forth a son,and he shall call his name,jesus,for he will
21120能除尽的数?50至100以内的两位数.
zhiainimama1年前3
燃烧的静子 共回答了15个问题 | 采纳率100%
分解质因数:21120=2×2×2×2×2×2×2×3×5×11
所以50-100的两位数有:64,96,80,44,88,60,66,55.