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