求70道计算题(42道一元二次方程,28道二次根式)

1个回答

  • 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