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45Word文档下载推荐.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45Word文档下载推荐.docx
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x2-x-—=0x2-8+2=0
9
(1)x2-10x+____=(x-____)2
(2)x2+5x+____=(x+____)2
7
x2+20+7=0x2-16+9=0
8x2-16x-6=09x2-18x-6=0
x2-4x+1-3x=20x2+4x+9-5x=15
x(x-4)=2x+13x(x-5)=2x+20
2x2-2x-2=06x2-10x+10=0
x2-x+—=0x2-8+8=0
4
(1)x2+2x+____=(x+____)2
(2)x2-7x+____=(x-____)2
(3)x2+—x+____=(x+____)2
x2+10+9=0x2-18+1=0
4x2-8x+4=08x2-16x-6=0
x2+2x+9-8x=20x2-10x+2-7x=15
x(x-8)=7x+14x(x-5)=6x-17
4x2+2x+3=06x2+10x+2=0
x2-x+—=0x2+12+1=0
(2)x2-3x+____=(x-____)2
8
x2+20+9=0x2+16+7=0
6x2-12x+10=06x2-12x-4=0
x2+10x-10-5x=11x2+2x-2+6x=11
x(x+8)=7x-10x(x-1)=3x+16
2x2-10x-4=02x2+10x-2=0
x2+x+—=0x2-14+1=0
(1)x2+4x+____=(x+____)2
x2-12+4=0x2+14+3=0
2x2+4x-2=07x2+14x+10=0
x2+10x+7-8x=20x2+2x+3+5x=10
x(x-2)=5x+6x(x+8)=5x+10
6x2+6x-10=06x2-2x+4=0
x2+x+—=0x2+16+7=0
2
3
x2-12+3=0x2-6+6=0
4x2-8x-2=06x2-12x+6=0
x2-4x-10-7x=15x2+4x-10-1x=11
x(x+8)=6x-13x(x-7)=8x-2
4x2-4x+7=04x2-6x-7=0
x2+x-—=0x2-14+1=0
10
x2-6+4=0x2+20+7=0
3x2+6x-4=02x2-4x-2=0
x2-2x+7+6x=15x2-4x+4-6x=19
x(x-8)=4x-2x(x+3)=7x-20
4x2-8x-5=02x2-2x+4=0
x2+x+—=0x2-4+5=0
(1)x2-2x+____=(x-____)2
(2)x2+6x+____=(x+____)2
x2+2+4=0x2+14+3=0
5x2-10x+10=02x2+4x+8=0
x2-6x+1-2x=12x2-4x-5-3x=19
x(x-7)=5x-1x(x-2)=8x-8
2x2+2x-4=04x2-8x-5=0
x2-x+—=0x2+8+3=0
(1)x2+18x+____=(x+____)2
(2)x2+2x+____=(x+____)2
x2+6+6=0x2+18+5=0
7x2-14x+6=08x2+16x-10=0
x2+10x-10-9x=20x2+8x+1-6x=10
x(x-5)=2x-11x(x+4)=7x-7
6x2-10x+4=06x2+2x-3=0
x2+x-—=0x2+12+1=0
(1)x2+10x+____=(x+____)2
(2)x2+9x+____=(x+____)2
x2+6+3=0x2+4+9=0
3x2-6x+8=04x2-8x+8=0
x2+6x-7-4x=10x2-6x+4+5x=20
x(x-3)=5x-14x(x-2)=7x+2
2x2-6x+1=04x2-6x+4=0
x2+x-—=0x2+6+7=0
(2)x2-9x+____=(x-____)2
x2-6+9=0x2+10+5=0
5x2+10x-10=03x2+6x+4=0
x2-4x-6+9x=11x2-10x+3-2x=12
x(x+8)=7x+4x(x-8)=3x-3
4x2-4x+10=06x2-4x-7=0
x2-x+—=0x2-2+3=0
(1)x2+12x+____=(x+____)2
(2)x2-5x+____=(x-____)2
x2-12+6=0x2-6+2=0
10x2+20x+4=08x2+16x+8=0
x2-8x+1-9x=17x2+2x-9+4x=11
x(x+8)=9x-12x(x-7)=5x+19
6x2+10x+3=02x2+6x-9=0
x2+x-—=0x2-4+7=0
(2)x2-2x+____=(x-____)2
x2+8+5=0x2-14+6=0
10x2-20x-4=03x2+6x-10=0
x2+6x+2+8x=19x2-4x-4+2x=10
x(x-6)=2x-5x(x+2)=5x+2
4x2+4x+10=04x2-8x-1=0
x2+x-—=0x2-4+9=0
(1)x2+8x+____=(x+____)2
(2)x2-8x+____=(x-____)2
x2-20+6=0x2-14+2=0
3x2-6x+4=02x2-4x-8=0
x2+4x-4+1x=10x2-4x+7+6x=11
x(x-1)=7x-2x(x+4)=2x-2
4x2+4x+4=02x2+6x-2=0
x2+x+—=0x2+16+10=0
(2)x2-6x+____=(x-____)2
x2-16+6=0x2+2+10=0
10x2-20x-8=08x2+16x-4=0
x2+4x-10+1x=16x2-4x-6-9x=18
x(x-5)=6x+9x(x+9)=4x-19
6x2+2x-7=06x2-2x-7=0
x2-x-—=0x2-2+3=0
x2+10+6=0x2-12+4=0
6x2-12x-10=02x2+4x-2=0
x2-10x-7-2x=19x2-2x-2+3x=11
x(x-6)=6x-20x(x+4)=2x-13
4x2+8x+6=06x2-10x-8=0
x2-x+—=0x2+8+9=0
(1)x2-16x+____=(x-____)2
x2-12+6=0x2+4+5=0
3x2+6x-4=05x2+10x+10=0
x2-10x-8-2x=19x2-2x+7+4x=20
x(x+6)=9x-1x(x-7)=5x-20
6x2-10x-10=04x2+10x+1=0
x2+x+—=0x2+6+8=0
(1)x2-14x+____=(x-____)2
x2+4+1=0x2-6+3=0
2x2+4x+2=06x2+12x-8=0
x2-8x-4+6x=18x2-10x+6+2x=10
x(x-7)=2x+3x(x-8)=9x+19
6x2-10x+8=02x2+2x-10=0
x2-x-—=0x2+4+8=0
(1)x2+16x+____=(x+____)2
x2-10+7=0x2-18+4=0
5x2+10x+10=010x2-20x+6=0
x2+6x-3+7x=19x2+4x+3+8x=14
x(x-3)=8x+13x(x-5)=2x-12
6x2+6x+9=02x2-6x-1=0
x2-x+—=0x2-16+8=0
(1)x2-12x+____=(x-____)2
(2)x2+3x+____=(x+____)2
x2+12+9=0x2-8+7=0
2x2+4x+10=04x2-8x+6=0
x2+6x+4-8x=15x2+10x-4+4x=15
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