人教版初中九年级数学上册配方法解一元二次方程综合练习题47文档格式.docx
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人教版初中九年级数学上册配方法解一元二次方程综合练习题47文档格式.docx
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x2-x-—=0x2+6+9=0
9
(1)x2-12x+____=(x-____)2
(2)x2+4x+____=(x+____)2
8
x2+6+5=0x2-6+6=0
8x2+16x-10=08x2-16x-6=0
x2-10x+8-2x=16x2-8x+5+8x=19
x(x+9)=9x-18x(x+1)=2x+13
4x2-10x-2=06x2-6x-6=0
5
x2-x-—=0x2+14+4=0
(1)x2-6x+____=(x-____)2
x2+10+4=0x2+14+5=0
10x2-20x-2=010x2+20x+8=0
x2+2x-7+3x=11x2+8x+8+5x=19
x(x-4)=7x-8x(x-4)=5x-16
2x2+8x-3=02x2-4x+5=0
x2-x+—=0x2-14+9=0
(1)x2-20x+____=(x-____)2
(2)x2-9x+____=(x-____)2
2
x2-2+1=0x2+18+8=0
10x2-20x+10=08x2+16x+6=0
x2-2x-2+9x=17x2-2x+10-2x=12
x(x+9)=8x-13x(x+6)=4x+17
2x2-10x-3=02x2+8x+7=0
x2+x-—=0x2-16+4=0
(1)x2+16x+____=(x+____)2
(2)x2+3x+____=(x+____)2
(3)x2-—x+____=(x-____)2
x2+18+6=0x2+16+8=0
8x2-16x+8=07x2+14x+4=0
x2+8x-7+2x=12x2-4x+5-8x=12
x(x+2)=3x-15x(x-6)=6x-4
4x2-10x-7=02x2+10x+10=0
x2-x-—=0x2+2+9=0
(1)x2+12x+____=(x+____)2
(2)x2-4x+____=(x-____)2
x2+12+1=0x2-10+7=0
7x2+14x+2=09x2-18x+6=0
x2+2x-4+7x=15x2+10x+1+3x=13
x(x-2)=7x+10x(x-2)=4x-6
6x2+8x+7=06x2+2x-6=0
1
x2+x+—=0x2-4+3=0
(1)x2-14x+____=(x-____)2
6
x2-12+6=0x2-12+8=0
4x2+8x-8=010x2+20x+2=0
x2-8x-4-5x=15x2+4x+9+2x=13
x(x-3)=7x-18x(x+6)=4x-15
4x2-4x-9=06x2-4x+3=0
x2+x+—=0x2+20+8=0
(2)x2-5x+____=(x-____)2
x2-20+4=0x2-16+9=0
6x2+12x-10=08x2-16x+6=0
x2+8x+2-1x=12x2-8x+5+9x=12
x(x-8)=7x+14x(x+8)=8x+11
4x2+10x+5=02x2-4x-10=0
x2-x-—=0x2-10+9=0
(2)x2+6x+____=(x+____)2
x2+4+10=0x2-18+3=0
4x2+8x-2=04x2+8x-6=0
x2-4x-2-6x=17x2+6x+10+1x=16
x(x-5)=6x+11x(x-3)=3x-13
2x2-2x-3=06x2+10x-2=0
x2-x+—=0x2-6+3=0
(1)x2-10x+____=(x-____)2
(2)x2-7x+____=(x-____)2
x2-2+10=0x2+10+8=0
5x2+10x+2=04x2-8x-8=0
x2+8x+5-1x=15x2-4x-2+2x=20
x(x+1)=2x-4x(x+1)=4x+3
2x2+2x-5=04x2-6x-4=0
x2+x+—=0x2-16+2=0
(1)x2+10x+____=(x+____)2
(2)x2+7x+____=(x+____)2
x2+16+10=0x2-20+7=0
4x2-8x-6=05x2-10x-8=0
x2+6x-7+7x=13x2+10x-3+6x=10
x(x-6)=2x-20x(x+9)=8x+15
6x2-8x-8=02x2+10x+4=0
x2-x+—=0x2+6+9=0
(1)x2+6x+____=(x+____)2
(2)x2+2x+____=(x+____)2
x2+6+3=0x2-2+4=0
3x2-6x-6=03x2+6x-2=0
x2+6x+6+8x=12x2-2x-4-3x=12
x(x+4)=5x-10x(x+9)=9x+18
6x2-8x-2=04x2-8x-7=0
x2-x-—=0x2-18+2=0
(1)x2-8x+____=(x-____)2
x2-6+3=0x2-10+5=0
5x2+10x-8=010x2-20x+6=0
x2-4x+5+5x=16x2-2x+5+1x=20
x(x+8)=6x+13x(x+9)=3x+15
6x2+10x-6=04x2-6x-4=0
x2-x-—=0x2-12+3=0
(1)x2+18x+____=(x+____)2
(2)x2-3x+____=(x-____)2
x2-18+1=0x2+8+4=0
9x2-18x-2=06x2+12x-10=0
x2+6x-9-7x=16x2+2x+9+6x=20
x(x-7)=8x+19x(x-8)=2x-20
2x2-8x-6=04x2-4x-5=0
x2+x-—=0x2+16+2=0
x2+6+2=0x2+4+2=0
8x2+16x-2=06x2+12x-10=0
x2+8x+7-6x=11x2+2x-5+1x=15
x(x-8)=2x+16x(x+9)=8x-8
2x2+2x+4=06x2+4x-8=0
x2-x+—=0x2-20+9=0
x2+14+10=0x2-6+7=0
8x2-16x-8=09x2-18x-4=0
x2+6x+10+2x=19x2+6x-5-9x=13
x(x+2)=6x-18x(x-1)=8x+16
4x2+10x+7=06x2+8x-2=0
x2+x-—=0x2-10+2=0
(1)x2+8x+____=(x+____)2
x2-14+5=0x2+2+7=0
5x2+10x-4=09x2+18x-6=0
x2-8x+5+2x=18x2-8x-8-9x=14
x(x+2)=8x-5x(x-1)=2x+12
4x2+10x-1=04x2+4x+2=0
10
x2+2+2=0x2-10+8=0
6x2+12x-8=04x2+8x-4=0
x2+10x+10-4x=14x2-2x+1+2x=12
x(x-3)=2x+9x(x-2)=3x+20
4x2+6x+5=02x2-4x-10=0
x2+x-—=0x2+10+1=0
(2)x2-8x+____=(x-____)2
x2+18+8=0x2-14+8=0
4x2+8x-10=03x2+6x+8=0
x2+6x+8-1x=12x2+6x-10+9x=10
x(x-6)=4x+9x(x-1)=3x-13
6x2-2x-10=04x2-2x-3=0
x2+x-—=0x2-16+3=0
x2+6+6=0x2-16+7=0
9x2+18x+6=05x2+10x+2=0
x2+4x-7+8x=10x2-2x-5-
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