一元二次方程计算题及答案

1、6X²-7X+1=06X²-7X=-1X²-76X+712²=-16712² X-712²=25144X-712=±512X1=1,X2=165X²-18=9X5X²-9X=18X²-1.8X=3.6 X-0.9²=4.41X-.9=±2.1X1=3,X2=-1.24X²-3X=52解 ：X²-34X=13 X-38²=13X-38=±298 X1=4,X2 =-1345X²=4-2X5X²+2X=4X&#

2、178;+0.2X=0.8X+0.1² =0.81X+0.1=±0.9X1=-1,X2=0.8 就这么几道,最好去百度搜索,那多 1)x2-9x+8=0 答案：x1=8 x2=1 (2)x2+6x-27=0 答案：x1=3 x2=-9 (3)x2-2x-80=0 答案：x1=-8 x2=10 (4)x2+10x-200=0 答案：x1=-20 x2=10 (5)x2-20x+96=0 答案：x1=12 x2=8 (6)x2+23x+76=0 答案：x1=-19 x2=-4 (7)x2-25x+154=0 答案：x1

3、=14 x2=11 (8)x2-12x-108=0 答案：x1=-6 x2=18 (9)x2+4x-252=0 答案：x1=14 x2=-18 (10)x2-11x-102=0 答案：x1=17 x2=-6 (11)x2+15x-54=0 答案：x1=-18 x2=3 (12)x2+11x+18=0 答案：x1=-2 x2=-9 (13)x2-9x+20=0 答案：x1=4 x2=5 (14)x2+19x+90=0 答案：x1=-10 x2=-9 (15)x2-25x+156=0 答案：x1=13 x2=12

4、60;(16)x2-22x+57=0 答案：x1=3 x2=19 (17)x2-5x-176=0 答案：x1=16 x2=-11 (18)x2-26x+133=0 答案：x1=7 x2=19 (19)x2+10x-11=0 答案：x1=-11 x2=1 (20)x2-3x-304=0 答案：x1=-16 x2=19 (21)x2+13x-140=0 答案：x1=7 x2=-20 (22)x2+13x-48=0 答案：x1=3 x2=-16 (23)x2+5x-176=0 答案：x1=-16 x2=11 (24)x2

5、+28x+171=0 答案：x1=-9 x2=-19 (25)x2+14x+45=0 答案：x1=-9 x2=-5 (26)x2-9x-136=0 答案：x1=-8 x2=17 (27)x2-15x-76=0 答案：x1=19 x2=-4 (28)x2+23x+126=0 答案：x1=-9 x2=-14 (29)x2+9x-70=0 答案：x1=-14 x2=5 (30)x2-1x-56=0 答案：x1=8 x2=-7 (31)x2+7x-60=0 答案：x1=5 x2=-12 (32)x2+10x-39=0 答案

6、：x1=-13 x2=3 (33)x2+19x+34=0 答案：x1=-17 x2=-2 (34)x2-6x-160=0 答案：x1=16 x2=-10 (35)x2-6x-55=0 答案：x1=11 x2=-5 (36)x2-7x-144=0 答案：x1=-9 x2=16 (37)x2+20x+51=0 答案：x1=-3 x2=-17 (38)x2-9x+14=0 答案：x1=2 x2=7 (39)x2-29x+208=0 答案：x1=16 x2=13 (40)x2+19x-20=0 答案：x1=-20 x2=1

7、 (41)x2-13x-48=0 答案：x1=16 x2=-3 (42)x2+10x+24=0 答案：x1=-6 x2=-4 (43)x2+28x+180=0 答案：x1=-10 x2=-18 (44)x2-8x-209=0 答案：x1=-11 x2=19 (45)x2+23x+90=0 答案：x1=-18 x2=-5 (46)x2+7x+6=0 答案：x1=-6 x2=-1 (47)x2+16x+28=0 答案：x1=-14 x2=-2 (48)x2+5x-50=0 答案：x1=-10 x2=5 (49

8、)x2+13x-14=0 答案：x1=1 x2=-14 (50)x2-23x+102=0 答案：x1=17 x2=6 (51)x2+5x-176=0 答案：x1=-16 x2=11 (52)x2-8x-20=0 答案：x1=-2 x2=10 (53)x2-16x+39=0 答案：x1=3 x2=13 (54)x2+32x+240=0 答案：x1=-20 x2=-12 (55)x2+34x+288=0 答案：x1=-18 x2=-16 (56)x2+22x+105=0 答案：x1=-7 x2=-15 (57)x2+1

9、9x-20=0 答案：x1=-20 x2=1 (58)x2-7x+6=0 答案：x1=6 x2=1 (59)x2+4x-221=0 答案：x1=13 x2=-17 (60)x2+6x-91=0 答案：x1=-13 x2=7 (61)x2+8x+12=0 答案：x1=-2 x2=-6 (62)x2+7x-120=0 答案：x1=-15 x2=8 (63)x2-18x+17=0 答案：x1=17 x2=1 (64)x2+7x-170=0 答案：x1=-17 x2=10 (65)x2+6x+8=0 答案：x1=-4 x2

10、=-2 (66)x2+13x+12=0 答案：x1=-1 x2=-12 (67)x2+24x+119=0 答案：x1=-7 x2=-17 (68)x2+11x-42=0 答案：x1=3 x2=-14 (69)x20x-289=0 答案：x1=17 x2=-17 (70)x2+13x+30=0 答案：x1=-3 x2=-10 (71)x2-24x+140=0 答案：x1=14 x2=10 (72)x2+4x-60=0 答案：x1=-10 x2=6 (73)x2+27x+170=0 答案：x1=-10 x2=-17&#

11、160;(74)x2+27x+152=0 答案：x1=-19 x2=-8 (75)x2-2x-99=0 答案：x1=11 x2=-9 (76)x2+12x+11=0 答案：x1=-11 x2=-1 (77)x2+17x+70=0 答案：x1=-10 x2=-7 (78)x2+20x+19=0 答案：x1=-19 x2=-1 (79)x2-2x-168=0 答案：x1=-12 x2=14 (80)x2-13x+30=0 答案：x1=3 x2=10 (81)x2-10x-119=0 答案：x1=17 x2=-7 (82

12、)x2+16x-17=0 答案：x1=1 x2=-17 (83)x2-1x-20=0 答案：x1=5 x2=-4 (84)x2-2x-288=0 答案：x1=18 x2=-16 (85)x2-20x+64=0 答案：x1=16 x2=4 (86)x2+22x+105=0 答案：x1=-7 x2=-15 (87)x2+13x+12=0 答案：x1=-1 x2=-12 (88)x2-4x-285=0 答案：x1=19 x2=-15 (89)x2+26x+133=0 答案：x1=-19 x2=-7 (90)x2-17x+

13、16=0 答案：x1=1 x2=16 (91)x2+3x-4=0 答案：x1=1 x2=-4 (92)x2-14x+48=0 答案：x1=6 x2=8 (93)x2-12x-133=0 答案：x1=19 x2=-7 (94)x2+5x+4=0 答案：x1=-1 x2=-4 (95)x2+6x-91=0 答案：x1=7 x2=-13 (96)x2+3x-4=0 答案：x1=-4 x2=1 (97)x2-13x+12=0 答案：x1=12 x2=1 (98)x2+7x-44=0 答案：x1=-11 x2=4 (99)x2-6x-7=0 答案：x1=-1 x2=7 (100)x2-9x-90=0 答案：x1=15 x2=-6 (101)x2+17x+72=0 答案：x1=-8 x2=-9 (102)x2+13x-14=0 答案：x1=-14 x2=1 (103)x2+9x-36=0 答案：x1=-12 x2=3 (104)x2-9x-90=0 答案：x1=-6 x2=15 (105)x2+14x+13=0 答案：x1=-1 x2=-13