(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本回答被网友采纳
一元二次方程计算题400道,要求不多,是一元二次就行
(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-25...
出30道解一元二次方程的题目
一元二次方程的题目如下：一、3X+5X=48 二、14X-8X=12 三、6*5+2X=44 四、28+6X=88 五、32-22X=10 六、10X*（5+1）=60 七、99X=100-X 八、X-6=12 九、56-2X=20 十、x+32=76 十一、3x+6=18 十二、2x-8=8 十三、4x-3*9=29 十四、x-6*5=42 十五、x+5=7 十六、...
请教一元二次方程的题,谢了!
(a+b+c)^2=a^2+b^2+c^2+2ab+2ac+2bc
求一元二次方程计算题 只要计算题~!谢了~!
以下是给出的一元二次方程的计算题及其解:x² - 9x + 8 = 0 的解：x1 = 8, x2 = 1x² + 6x - 27 = 0 的解：x1 = 3, x2 = -9x² - 2x - 80 = 0 的解：x1 = -8, x2 = 10x² + 10x - 200 = 0 的解：x1 = -20, x2 = 10x² ...
20道一元二次方程,带解答过程
20道一元二次方程带解答过程是如下：1、2(x-2)-3(4x-1)=9(1-x) 。2x-4-12x+3=9-9x。x=-10。2. 11x+64-2x=100-9x 。18x=36。x=2。3. 15-(8-5x)=7x+(4-3x) 。15-8+5x=7x+4-3x。x=-3。4. 3(x-7)-2[9-4(2-x)]=22 。3x-21-2(9-8+4x)=22。3x-21-2...
我要50道关于一元二次方程公式法的计算题...
6x*x+6x+7=1843 9x*x+24x+6=1839 8x*x+26x+1=151 6x*x+26x+1=721 3x*x+19x+9=1323 8x*x+22x+0=76 10x*x+27x+7=4130 1x*x+6x+4=44 8x*x+0x+2=34 3x*x+13x+7=1095 10x*x+14x+6=3498 8x*x+26x+4=1064 5x*x+5x+9=69 7x*x+27x+3=2227 9x*x...
急需100道一元二次方程
X^2-2X+3=0 -X^2-2X+8=0 X^2-X-2=4 2X^2-3X+1=0 -3X^2+4X+4=0 4X^2-11X-3=3 x^2-2x-3=0 4x^2-1=0 5x^2-3x+2=0 -x^2-2x+8=0 -2x2+x+3=0 2x^2+3x-9=0 x^2-9=0 4x^2-10x-6=0 5x^2-8x-4=0 3x^2+4x-4=0 6x^2+7x-5=0 x^2-8x+12...
一元二次方程5道计算题!!!
1、1\/2(x+2)ˆ2-8=0 1\/2(x+2)ˆ2=8 (x+2)ˆ2=16 x+2=+4或-4 x=2或-6 类似的自己算吧
帮忙解决几道一元二次方程的题目!
方程：x^2-3\/2*x-3=0即 2x^2-3x-6=0 (2) 4x^2-3x-2=0两根为a，b a+b=3\/4，ab=-1\/2 x1+x2=a^2+b^2=(a+b)^2-2ab=9\/16+1=25\/16 x1*x2=a^2*b^2=(ab)^2=1\/4 方程：x^2-25\/16*x+1\/4=0即 16x^2-25x+4=0 6) x1+x2=(2m-1)\/m，x1*x2=(...
一元二次方程计算题
5(x+8)-5=6(2x-7)解：5x-40-5=12x-42 5x-35=12x-42 77=7x x=11 2(2x+1)-10x-1=6 解：4x+2-10x-1=6 -6x+1=6 6-1=6x 5=6x x=5\/6 6(12+x)=10(12-x)解:72+6x=120-10x 10x+6x=120-72 16x=48 x=3 6x-2=7x+7 解：-7-2=7x-6x x =-9 8x-7=10x-5...
