人教版初三数学上册一元二次方程专项练习题1Word文档格式.docx
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人教版初三数学上册一元二次方程专项练习题1Word文档格式.docx
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x2-3=0x2-1=4(x-3)2-5=0
2(x-8)2-5=0x2-8x+16=74x2+3=8
3x2+8=7xx2+3x=81(8x+9)(x+2)=0
6x(x+5)=14x(x-3)=09x(x-4)=4x-2
(3x-6)(x+9)=x(5x-2)x2-6=4x7x(x-5)=8
6x2-5=03x2-8=4(x-1)2-1=0
2(x-2)2-3=0x2+16x+64=32x2+2=9
8x2+4=3x8x2-5x=50(4x-3)(x-5)=0
3x(x+3)=226x(x-8)=0x(x-8)=8x-3
(7x-7)(x+8)=x(5x-7)x2+2=5xx(x+8)=24
x2-3=0x2-2=1(x-5)2-6=0
6(x+6)2-8=0x2-8x+16=72x2-7=6
x2+6=8x8x2+6x=23(2x-5)(x+3)=0
x(x-4)=136x(x-6)=06x(x-4)=2x+4
(5x-5)(x+9)=x(2x+9)x2-1=3x7x(x-1)=30
2x2-8=0x2-8=0(x+7)2-4=0
9(x-3)2-7=0x2-14x+49=8x2+1=7
x2+5=9xx2-4x=97(7x+6)(x+9)=0
7x(x+4)=239x(x+8)=0x(x-9)=4x+8
(6x-1)(x-4)=x(2x-6)x2+2=2x8x(x+4)=25
x2-8=07x2-3=9(x-9)2-5=0
8(x+2)2-1=0x2-14x+49=95x2-4=9
8x2-5=8x2x2+4x=2(7x+5)(x-9)=0
x(x+4)=194x(x+9)=04x(x+5)=2x-3
(9x+6)(x-2)=x(9x+6)x2+3=3xx(x+9)=18
x2-9=04x2-3=7(x-2)2-7=0
9(x-4)2-1=0x2+18x+81=8x2+7=5
x2+6=3x3x2+3x=10(3x-1)(x+5)=0
5x(x+5)=20x(x+8)=03x(x-2)=3x-2
(5x+3)(x+9)=x(2x-9)6x2-3=3x7x(x+3)=29
x2-8=05x2-8=6(x+7)2-6=0
(x-9)2-3=0x2+12x+36=28x2-1=6
8x2-5=5xx2+6x=83(4x-7)(x-7)=0
9x(x+1)=308x(x-5)=06x(x-1)=7x+9
(9x+8)(x+6)=x(4x+5)2x2+2=9x3x(x+2)=4
6x2-7=0x2-7=0(x-4)2-4=0
9(x+4)2-1=0x2-10x+25=3x2-6=6
x2-5=8x4x2+7x=93(7x+6)(x+4)=0
x(x+9)=78x(x-2)=0x(x+7)=6x-5
(9x-9)(x+6)=x(4x-1)x2-9=8xx(x-7)=7
2x2-3=0x2-1=2(x+8)2-4=0
3(x-9)2-9=0x2-14x+49=63x2+5=5
8x2-2=5xx2-9x=57(6x-5)(x+8)=0
x(x+6)=74x(x+4)=06x(x-2)=7x+4
(5x-2)(x+1)=x(2x-2)x2-6=2xx(x-8)=12
x2-3=07x2-4=7(x-8)2-5=0
(x-4)2-2=0x2+18x+81=7x2+7=4
x2-9=6xx2-2x=91(8x-3)(x+3)=0
x(x+8)=30x(x+6)=02x(x-3)=5x+7
(4x+1)(x-6)=x(4x+9)x2+5=9xx(x+6)=14
7x2-8=03x2-8=5(x+4)2-1=0
8(x-4)2-8=0x2-14x+49=9x2+4=6
7x2-9=9x9x2+9x=74(6x-4)(x-8)=0
9x(x-2)=299x(x-7)=0x(x-7)=6x+9
(5x-4)(x+2)=x(7x-2)x2-6=9x8x(x-7)=25
x2-3=0x2-9=7(x-2)2-3=0
(x+6)2-6=0x2-6x+9=7x2+8=6
3x2+2=9xx2-6x=34(3x-9)(x-8)=0
5x(x+5)=303x(x-5)=03x(x+7)=7x-8
(5x-3)(x-6)=x(4x+9)x2-3=8x5x(x-1)=2
x2-2=07x2-5=0(x+8)2-6=0
3(x+8)2-2=0x2-18x+81=3x2+4=6
x2+5=3xx2-3x=93(9x-3)(x+3)=0
x(x-2)=183x(x+4)=02x(x+3)=2x-6
(3x+7)(x-9)=x(3x+4)3x2+1=8x5x(x-9)=29
x2-2=0x2-5=4(x+4)2-8=0
2(x-7)2-6=0x2+4x+4=99x2-1=3
4x2+5=5x4x2-8x=20(5x+2)(x+6)=0
7x(x-9)=23x(x+7)=0x(x-9)=6x-5
(9x-2)(x-2)=x(5x-6)6x2-5=4x9x(x-3)=30
x2-5=0x2-9=8(x+4)2-9=0
9(x-9)2-2=0x2-2x+1=9x2+1=3
x2-6=6x5x2+5x=7(6x-6)(x-6)=0
x(x+8)=22x(x-4)=03x(x+5)=4x+1
(8x+6)(x-3)=x(2x+4)x2+7=7x5x(x+6)=7
7x2-4=0x2-2=6(x+3)2-6=0
4(x+6)2-5=0x2+8x+16=27x2+5=2
4x2+3=8x9x2+6x=96(6x+7)(x+5)=0
x(x-3)=186x(x+7)=0x(x+9)=9x+2
(7x-8)(x+8)=x(3x-7)x2-6=3xx(x+8)=19
9x2-2=04x2-2=1(x+5)2-5=0
5(x-7)2-3=0x2-2x+1=8x2+4=3
x2+2=3xx2+3x=89(7x-6)(x+2)=0
x(x+9)=257x(x-2)=05x(x+5)=4x-9
(7x+1)(x-7)=x(6x-5)x2-5=6x6x(x+4)=13
2x2-8=03x2-9=6(x-4)2-5=0
(x-8)2-3=0x2-4x+4=7x2+4=3
x2+8=2x6x2-3x=48(7x-5)(x-2)=0
9x(x+8)=19x(x-8)=02x(x-3)=4x-2
(6x-3)(x-2)=x(5x+8)3x2-5=3x7x(x-7)=15
x2-8=09x2-7=8(x-1)2-7=0
(x+5)2-9=0x2-6x+9=59x2-9=2
7x2+9=8x3x2-6x=19(5x+3)(x-2)=0
5x(x+7)=4x(x+5)=0x(x-6)=5x+8
(4x-3)(x-1)=x(8x-3)x2+1=3x3x(x-7)=25
2x2-8=02x2-3=9(x+9)2-6=0
(x-3)2-9=0x2+14x+49=3x2-3=3
9x2+9=6x2x2+5x=92(4x+8)(x-8)=0
x(x-6)=69x(x+4)=0x(x+1)=6x-4
(6x-1)(x-6)=x(8x+5)2x2+1=7x6x(x-6)=25
4x2-8=0x2-3=5(x+3)2-2=0
4(x+4)2-3=0x2-8x+16=33x2+6=3
x2-3=2xx2+3x=72(5x-4)(x+5)=0
x(x-5)=158x(x-1)=04x(x-3)=2x+9
(8x-7)(x+8)=x(6x-3)5x2+7=8x2x(x+2)=17
x2-2=0x2-6=6(x-2)2-3=0
9(x-9)2-1=0x2+10x+25=13x2+5=5
8x2-1=8xx2-6x=70(8x-3)(x-3)=0
5x(x-1)=13x(x+1)=0x(x-9)=9x+9
(9x+8)(x-1)=x(2x-5)x2+2=2xx(x-7)=9
x2-9=0x2-2=9(x-2)2-8=0
(x+9)2-9=0x2+18x+81=7x2-3=5
4x2+9=7xx2+6x=53(5x+5)(x+3)=0
x(x+5)=294x(x-5)=0x(x-9)=5x-2
(3x+2)(x+6)=x(6x+9)x2+6=9x6x(x-4)=17
x2-4=0x2-4=5(x-6)2-5=0
(x-2)2-2=0x2+10x+25=5x2+3=5
x2+7=4x5x2-7x=64(2x+1)(x-6)=0
x(x-4)=13x(x+1)=07x(x+5)=2x+5
(7x+2)(x-4)=x(7x+1)x2-7=3xx(x+2)=28
4x2-3=0x2-7=8(x+2)2-4=0
(x-8)2-9=0x2+2x+1=4x2-1=4
9x2-7=5x2x2-3x=33(3x-4)(x+5)=0
x(x-7)=224x(x+3)=0x(x+5)=5x+4
(9x+5)(x+2)=x(2x+9)x2-2=8x4x(x+3)=20
x2-1=09x2-6=5(x-9)2-1=0
(x-5)2-2=0x2-12x+36=83x2-9=3
x2-8=4xx2+9x=28(9x+1)(x+2)=0
x(x-7)=306x(x-3)=0x(x-6)=2x-2
(5x+8)(x-4)=x(5x+3)6x2-8=3xx(x-5)=24
7x2-3=0x2-8=7(x+8)2-2=0
(x+2)2-1=0x2-8x+16=4x2+8=5
x2-8=4xx2-6x=48(6x+5)(x+7)=0
2x(x+1)=22x(x+5)=02x(x-4)=6x+8
(5x+6)(x-4)=x(4x-5)9x2+4=6xx(x+5)=11
6x2-8=0x2-4=7(x-8)2-7=0
8(x+5)2-7=0x2+12x+36=8x2-2=9
4x2+3=5xx2+6x=71(3x-3)(x-2)=0
3x(x-4)=74x(x+4)=0x(x-2)=9x+9
(3x+4)(x+6)=x(3x-3)2x2+8=4x5x(x-5)=6
x2-3=03x2-1=8(x-1)2-1=0
(x+1)2-8=0x2-18x+81=66x2-3=5
x2-3=9x8x2+3x=79(6x+7)(x+4)=0
x(x+5)=35x(x-6)=07x(x-7)=4x-6
(3x+6)(x+4)=x(6x+5)8x2-8=3x2x(x-9)=17
x2-7=0x2-9=7(x+2)2-3=0
7(x-4)2-3=0x2-10x+25=9x2-5=5
8x2+5=4xx2+3x=54(4x+6)(x+3)=0
x(x+6)=33x(x-3)=0x(x+4)=8x-4
(6x+8)(x+8)=x(5x-2)7x2-5=3x9x(x-3)=26
x2-8=04x2-1=4(x-6)2-9=0
5(x-2)2-9=0x2-2x+1=62x2+5=2
x2+6=5x9x2-1x=50(5x-6)(x-1)=0
8x(x-6)=28x(x-6)=03x(x+5)=9x+1
(9x-2)(x+9)=x(6x+7)5x2-2=9x7x(x+3)=13
4x2-4=08x2-8=7(x-6)2-5=0
5(x+1)2-4=0x2+18x+81=78x2-4=7
3x2-8=5x
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