人教版初中九年级数学上册公式法解一元二次方程综合练习题29.docx
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人教版初中九年级数学上册公式法解一元二次方程综合练习题29
x2-9x+1=04x2+2
x-3=0
4x2-7x-3=0x2-6x=16
2x2-2x=x+6x2+2x-1=0
4x2-8x-7=08x2-9x=0
x2-5x+10=5x-6x(3x-2)=9-8x
x2-2x+3=03x2-2
x-1=0
4x2+8x+8=0x2-7x=2
3x2+10x=x+9x2-10x+10=0
3x2+5x+6=05x2-7x=0
x2-4x+10=4x-1x(3x-1)=4-6x
x2-5x-9=03x2-4
x-1=0
3x2+4x-7=0x2+5x=1
3x2-8x=x+7x2-4x-9=0
2x2+3x+8=08x2-5x=0
x2+6x-6=3x+9x(3x+4)=2+8x
x2+5x+5=02x2-2
x+10=0
2x2-7x+3=0x2-10x=16
4x2-8x=x-2x2+9x-7=0
2x2+5x-7=07x2-7x=0
x2+4x+9=7x+10x(2x+4)=7-4x
x2+4x+6=02x2-4
x-6=0
3x2-7x-10=0x2+10x=2
3x2-2x=x-1x2+7x+2=0
2x2-4x+6=05x2+6x=0
x2+5x-6=6x-7x(4x+4)=7-6x
x2+9x+1=04x2+3
x-4=0
2x2-6x+10=0x2-5x=7
2x2-6x=x-9x2+5x+3=0
2x2-5x+10=09x2+4x=0
x2+5x-2=2x+3x(2x-5)=1-3x
x2-5x-7=02x2+2
x+8=0
2x2-2x+1=0x2+8x=10
3x2+10x=x-6x2+6x-10=0
3x2-2x-5=07x2-2x=0
x2+3x+9=9x+2x(2x-2)=5+7x
x2+6x+6=04x2+4
x+5=0
2x2-3x+8=0x2-7x=3
2x2+3x=x-3x2+2x+3=0
4x2-6x+10=06x2+9x=0
x2+3x+10=8x-5x(4x-3)=1-4x
x2-6x+4=02x2+2
x+8=0
2x2-3x+8=0x2+4x=2
4x2+6x=x+1x2+2x+3=0
2x2-9x-3=04x2+5x=0
x2-8x+4=5x+3x(3x-3)=5+6x
x2+6x-3=04x2+4
x+8=0
4x2-8x-9=0x2-9x=3
4x2+3x=x+2x2+4x-6=0
2x2+9x+2=03x2+3x=0
x2-9x-4=9x-3x(3x-3)=8-7x
x2+3x+1=03x2+4
x+3=0
2x2-4x+10=0x2-8x=1
3x2+3x=x-10x2-4x+2=0
4x2-9x-8=05x2-10x=0
x2+5x+4=2x+6x(2x-3)=7+5x
x2-3x+1=03x2-4
x-4=0
2x2-4x+3=0x2+7x=2
3x2-9x=x-10x2-7x+1=0
3x2-9x+7=05x2-6x=0
x2+7x-1=2x-5x(2x-2)=6-8x
x2-3x-1=02x2-3
x+1=0
2x2+2x+8=0x2+6x=14
2x2+3x=x+7x2-2x-1=0
3x2-10x+3=04x2-10x=0
x2+6x-9=8x+1x(4x-5)=6+8x
x2+2x+6=02x2-3
x-7=0
2x2+4x+8=0x2-7x=7
4x2-3x=x+6x2+3x+1=0
2x2+6x+4=03x2+8x=0
x2+10x-3=4x+2x(2x+4)=4+5x
x2-7x-5=02x2+4
x-8=0
2x2-6x+2=0x2-8x=16
3x2-3x=x+6x2-3x-10=0
4x2+8x+3=09x2-10x=0
x2-9x+8=6x+2x(4x+1)=3+5x
x2-2x-2=04x2+3
x+9=0
3x2-10x+4=0x2+9x=1
2x2-2x=x+8x2-8x-1=0
3x2+10x-2=03x2-6x=0
x2+5x-9=2x+4x(2x+1)=5-8x
x2+2x+2=04x2-2
x+6=0
3x2-10x+5=0x2-8x=11
2x2+2x=x-3x2+2x-6=0
2x2+7x+6=03x2+9x=0
x2-4x-4=8x-7x(4x+2)=9-6x
x2+2x+2=04x2+4
x-4=0
2x2-8x+10=0x2+5x=2
4x2-4x=x-4x2+4x+6=0
2x2-5x+6=06x2+6x=0
x2-9x+9=4x+8x(2x+1)=2+3x
x2+10x-3=03x2+4
x-4=0
3x2-6x+9=0x2+7x=10
3x2-5x=x-3x2-8x+5=0
3x2-7x+10=07x2+7x=0
x2-4x-6=3x-7x(4x-1)=6-9x
x2-9x-1=04x2-4
x-4=0
4x2-3x-4=0x2+8x=8
3x2-10x=x+2x2+2x-4=0
3x2+7x+5=04x2+10x=0
x2-7x+3=7x+3x(2x-1)=5+2x
x2-2x+3=04x2+4
x-6=0
4x2+4x+9=0x2+4x=8
3x2+10x=x+8x2-10x+8=0
4x2+9x+5=03x2-7x=0
x2-9x-9=2x-10x(3x-4)=8-2x
x2-8x-6=02x2+2
x-3=0
2x2+10x-8=0x2+8x=13
2x2-7x=x-8x2+8x-8=0
3x2-10x-10=07x2-8x=0
x2+9x+3=5x+8x(2x+4)=6-9x
x2+10x+8=03x2+2
x-8=0
3x2-4x+5=0x2+5x=11
4x2+4x=x-2x2+8x-2=0
2x2-8x+9=06x2+4x=0
x2-2x-10=7x+4x(3x-4)=1+8x
x2-2x+9=03x2+4
x+8=0
3x2-7x-1=0x2-2x=1
3x2+5x=x+1x2-2x+9=0
4x2-3x-10=02x2-7x=0
x2+9x+10=8x+8x(4x-2)=4-5x
x2-6x-8=02x2-2
x+5=0
3x2+8x+2=0x2-9x=4
4x2+3x=x+9x2-10x-5=0
2x2+5x-6=03x2+4x=0
x2+10x+3=9x-6x(2x+5)=6-9x
x2-2x-10=02x2-4
x+5=0
4x2-3x+10=0x2-10x=1
3x2-5x=x+5x2+6x-5=0
2x2-7x-4=08x2+2x=0
x2+2x-8=2x-8x(2x-1)=3-3x
x2+4x-1=02x2+4
x-4=0
2x2-4x-2=0x2+2x=5
4x2+7x=x-5x2-10x+4=0
3x2+9x+3=09x2+3x=0
x2-4x-9=2x-5x(4x-5)=9-6x
x2+7x-7=02x2+4
x-9=0
3x2-8x+2=0x2+9x=20
2x2+6x=x-2x2+6x-10=0
2x2-8x+3=03x2-9x=0
x2+7x-2=9x-6x(3x-3)=9-8x
x2+7x+3=04x2+3
x+3=0
3x2+3x+8=0x2+2x=4
2x2+5x=x-7x2+8x-2=0
4x2-5x+4=02x2-7x=0
x2+5x-9=5x-10x(4x+5)=1+9x
x2-8x+8=03x2-4
x+8=0
4x2-9x-5=0x2-8x=10
3x2+2x=x+9x2+9x+7=0
3x2+7x+1=07x2+9x=0
x2-4x-2=8x-9x(2x+4)=6+3x
x2+8x+10=04x2+4
x+3=0
2x2+4x+5=0x2+7x=15
4x2+8x=x+4x2-8x+5=0
4x2-5x+2=05x2+9x=0
x2+10x+4=5x+10x(4x+5)=8-4x
x2+8x-3=04x2-4
x+3=0
2x2+6x+2=0x2+3x=12
2x2+8x=x-7x2+2x-8=0
4x2-2x-4=06x2+6x=0
x2-4x+4=2x+4x(3x+1)=1+9x
x2-2x+8=02x2+3
x-6=0
2x2-10x+10=0x2-4x=8
2x2+2x=x-6x2-7x-1=0
3x2-6x-6=03x2+10x=0
x2+7x+1=2x+4x(3x-2)=4+6x
x2+7x+2=03x2+2
x-2=0
4x2+8x-4=0x2-4x=2
2x2-9x=x+2x2+4x-1=0
4x2-10x-9=03x2+2x=0
x2+5x+4=7x-7x(3x-1)=4+9x
x2+7x+6=04x2+3
x+10=0
3x2-7x+6=0x2+5x=5
2x2-9x=x-8x2-10x-5=0
3x2-10x+6=09x2-9x=0
x2+3x-7=5x-1x(4x-5)=5-9x
x2-7x-3=04x2-3
x-5=0
2x2+2x+5=0x2+5x=15
2x2-4x=x-9x2+4x+1=0
2x2+3x+9=08x2-9x=0
x2+3x+9=9x-8x(4x-2)=9-9x
x2-6x-7=02x2+4
x-2=0
3x2-6x+4=0x2+3x=6
2x2-4x=x+2x2+5x+10=0
2x2+9x-2=02x2+5x=0
x2-6x-1=9x-8x(3x+4)=3+5x
x2-3x-8=02x2+4
x-10=0
4x2+7x-2=0x2+9x=20
3x2-10x=x+9x2+6x+9=0
2x2-8x-5=05x2+5x=0
x2+9x-9=7x+10x(3x-5)=9+6x
x2+4x+6=04x2+3
x-1=0
3x2+3x-8=0x2-6x=9
2x2+6x=x+1x2-8x+5=0
4x2-6x-10=03x2-10x=0
x2-4x-7=5x+2x(2x+1)=9-6x
x2+6x-8=02x2-3
x-5=0
3x2+8x-2=0x2+2x=14
2x2-8x=x-5x2-6x-6=0
2x2-10x-2=05x2+10x=0
x2+3x+6=2x-3x(4x+2)=9-2x
x2+6x-4=02x2-2
x-5=0
2x2-8x-10=0x2-7x=6
3x2-4x=x+6x2-9x+7=0
3x2-4x-4=04x2+3x=0
x2-9x+4=4x+10x(4x+5)=3-8x
x2-4x+10=03x2-4
x+3=0
3x2-6x+6=0x2-6x=3
3x2+6x=x+6x2-6x+9=0
3x2-7x+2=06x2-5x=0
x2+2x-8=9x+8x(3x+5)=1-2x
x2-2x+6=03x2-4
x+8=0
4x2+9x+3=0x2+10x=14
2x2-10x=x-6x2+2x-2=0
3x2+7x-4=02x2+3x=0
x2+6x-7=8x+5x(2x+5)=3+9x
x2-3x-5=02x2-3
x+8=0
3x2-3x+5=0x2+6x=1
2x2-8x=x+10x2-3x-3=0
4x2-10x+10=08x2-8x=0
x2-3x-6=9x-5x(2x+4)=8-6x
x2-6x+8=02x2-4
x-9=0
4x2-2x+1=0x2+5x=16
4x2-8x=x-7x2+4x+4=0
4x2-7x-2=08x2+10x=0
x2+5x+6=6x+1x(4x-5)=2-2x
x2+3x+6=02x2-4
x+9=0
2x2-6x+5=0x2+9x=1
3x2+8x=x-8x2-7x+3=0
2x2+9x+10=04x2-2x=0
x2+3x-7=7x+5x(3x-5)=3+3x
x2-7x-4=03x2-2
x-5=0
2x2-7x-2=0x2-8x=20
4x2-8x=x+9x2+5x+5=0
3x2+10x-9=08x2-10x=0
x2-5x+4=8x+8x(2x+1)=4-3x
x2-6x-2=03x2-2
x+7=0
4x2+2x-8=0x2-6x=4
2x2+3x=x-2x2+4x+2=0
2x2-8x-6=09x2+5x=0
x2-10x+3=6x+6x(4x-2)=7+6x
x2+5x+4=03x2-2
x-7=0
3x2-8x+8=0x2-7x=4
3x2-9x=x+8x2-5x+4=0
2x2+7x+1=07x2+5x=0
x2+3x-5=4x+1x(2x-3)=8-5x
x2-10x-7=03x2+3
x+4=0
3x2-2x-5=0x2-8x=19
3x2+10x=x-2x2-7x-1=0
4x2-9x+2=02x2-6x=0
x2-4x-10=4x+9x(2x+2)=6+3x