一元二次方程的计算，求完整的过程谢谢

(1)x^2-9x+8=0答案：x1=8x2=1

(2)x^2+6x-27=0答案：x1=3x2=-9

(3)x^2-2x-80=0答案：x1=-8x2=10

(4)x^2+10x-200=0答案：x1=-20x2=10

(5)x^2-20x+96=0答案：x1=12x2=8

(6)x^2+23x+76=0答案：x1=-19x2=-4

(7)x^2-25x+154=0答案：x1=14x2=11

(8)x^2-12x-108=0答案：x1=-6x2=18

(9)x^2+4x-252=0答案：x1=14x2=-18

(10)x^2-11x-102=0答案：x1=17x2=-6

(11)x^2+15x-54=0答案：x1=-18x2=3

(12)x^2+11x+18=0答案：x1=-2x2=-9

(13)x^2-9x+20=0答案：x1=4x2=5

(14)x^2+19x+90=0答案：x1=-10x2=-9

(15)x^2-25x+156=0答案：x1=13x2=12

(16)x^2-22x+57=0答案：x1=3x2=19

(17)x^2-5x-176=0答案：x1=16x2=-11

(18)x^2-26x+133=0答案：x1=7x2=19

(19)x^2+10x-11=0答案：x1=-11x2=1

(20)x^2-3x-304=0答案：x1=-16x2=19

(21)x^2+13x-140=0答案：x1=7x2=-20

(22)x^2+13x-48=0答案：x1=3x2=-16

(23)x^2+5x-176=0答案：x1=-16x2=11

(24)x^2+28x+171=0答案：x1=-9x2=-19

(25)x^2+14x+45=0答案：x1=-9x2=-5

(26)x^2-9x-136=0答案：x1=-8x2=17

(27)x^2-15x-76=0答案：x1=19x2=-4

(28)x^2+23x+126=0答案：x1=-9x2=-14

(29)x^2+9x-70=0答案：x1=-14x2=5

(30)x^2-1x-56=0答案：x1=8x2=-7

(31)x^2+7x-60=0答案：x1=5x2=-12

(32)x^2+10x-39=0答案：x1=-13x2=3

(33)x^2+19x+34=0答案：x1=-17x2=-2

(34)x^2-6x-160=0答案：x1=16x2=-10

(35)x^2-6x-55=0答案：x1=11x2=-5

(36)x^2-7x-144=0答案：x1=-9x2=16

(37)x^2+20x+51=0答案：x1=-3x2=-17

(38)x^2-9x+14=0答案：x1=2x2=7

(39)x^2-29x+208=0答案：x1=16x2=13

(40)x^2+19x-20=0答案：x1=-20x2=1

(41)x^2-13x-48=0答案：x1=16x2=-3

(42)x^2+10x+24=0答案：x1=-6x2=-4

(43)x^2+28x+180=0答案：x1=-10x2=-18

(44)x^2-8x-209=0答案：x1=-11x2=19

(45)x^2+23x+90=0答案：x1=-18x2=-5

(46)x^2+7x+6=0答案：x1=-6x2=-1

(47)x^2+16x+28=0答案：x1=-14x2=-2

(48)x^2+5x-50=0答案：x1=-10x2=5

(49)x^2+13x-14=0答案：x1=1x2=-14

(50)x^2-23x+102=0答案：x1=17x2=6