人教版九年级数学上册一元二次方程测试题(含答案)4页

人教版九年级数学上册一元二次方程测试题(含答
案)4页
（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
(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
(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
(51)x^2+5x-176=0答案：x1=-16x2=11
(52)x^2-8x-20=0答案：x1=-2x2=10
(53)x^2-16x+39=0答案：x1=3x2=13
(54)x^2+32x+240=0答案：x1=-20x2=-12
(55)x^2+34x+288=0答案：x1=-18x2=-16
(56)x^2+22x+105=0答案：x1=-7x2=-15
(57)x^2+19x-20=0答案：x1=-20x2=1
(58)x^2-7x+6=0答案：x1=6x2=1
(59)x^2+4x-221=0答案：x1=13x2=-17
(60)x^2+6x-91=0答案：x1=-13x2=7
(61)x^2+8x+12=0答案：x1=-2x2=-6
(62)x^2+7x-120=0答案：x1=-15x2=8
(63)x^2-18x+17=0答案：x1=17x2=1
(64)x^2+7x-170=0答案：x1=-17x2=10
(65)x^2+6x+8=0答案：x1=-4x2=-2
(66)x^2+13x+12=0答案：x1=-1x2=-12
(67)x^2+24x+119=0答案：x1=-7x2=-17
(68)x^2+11x-42=0答案：x1=3x2=-14
(69)x^20x-289=0答案：x1=17x2=-17
(70)x^2+13x+30=0答案：x1=-3x2=-10
(71)x^2-24x+140=0答案：x1=14x2=10
(72)x^2+4x-60=0答案：x1=-10x2=6
(73)x^2+27x+170=0答案：x1=-10x2=-17
(74)x^2+27x+152=0答案：x1=-19x2=-8
(75)x^2-2x-99=0答案：x1=11x2=-9
(76)x^2+12x+11=0答案：x1=-11x2=-1
(77)x^2+17x+70=0答案：x1=-10x2=-7
(78)x^2+20x+19=0答案：x1=-19x2=-1
(79)x^2-2x-168=0答案：x1=-12x2=14
(80)x^2-13x+30=0答案：x1=3x2=10
(81)x^2-10x-119=0答案：x1=17x2=-7
(82)x^2+16x-17=0答案：x1=1x2=-17
(83)x^2-1x-20=0答案：x1=5x2=-4
(84)x^2-2x-288=0答案：x1=18x2=-16
(85)x^2-20x+64=0答案：x1=16x2=4
(86)x^2+22x+105=0答案：x1=-7x2=-15
(88)x^2-4x-285=0答案：x1=19x2=-15
(89)x^2+26x+133=0答案：x1=-19x2=-7
(90)x^2-17x+16=0答案：x1=1x2=16
(91)x^2+3x-4=0答案：x1=1x2=-4
(92)x^2-14x+48=0答案：x1=6x2=8
(93)x^2-12x-133=0答案：x1=19x2=-7
(94)x^2+5x+4=0答案：x1=-1x2=-4
(95)x^2+6x-91=0答案：x1=7x2=-13
(96)x^2+3x-4=0答案：x1=-4x2=1
(97)x^2-13x+12=0答案：x1=12x2=1
(98)x^2+7x-44=0答案：x1=-11x2=4
(99)x^2-6x-7=0答案：x1=-1x2=7 (100)x^2-9x-90=0答案：x1=15x2=-6 (101)x^2+17x+72=0答案：x1=-8x2=-9 (102)x^2+13x-14=0答案：x1=-14x2=1 (103)x^2+9x-36=0答案：x1=-12x2=3 (104)x^2-9x-90=0答案：x1=-6x2=15 (105)x^2+14x+13=0答案：x1=-1x2=-13 (106)x^2-16x+63=0答案：x1=7x2=9 (107)x^2-15x+44=0答案：x1=4x2=11 (108)x^2+2x-168=0答案：x1=-14x2=12
(110)x^2-6x-55=0答案：x1=11x2=-5 (111)x^2+18x+32=0答案：x1=-2x2=-16。