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54.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54
x2-10x+6=02x2+2
x-3=0
3x2+10x+8=0x2+8x=9
4x2-9x=x+5x2-3x+2=0
4x2-8x-5=09x2+9x=0
x2+10x+7=7x-2x(4x-1)=6-7x
x2-8x+10=04x2+2
x-7=0
3x2-5x+2=0x2+7x=3
2x2+10x=x-9x2+8x+4=0
4x2-7x+10=04x2+10x=0
x2+6x+6=6x-1x(3x+1)=6+4x
x2+7x+9=04x2+2
x+5=0
4x2-2x-9=0x2-4x=6
2x2-4x=x+1x2-3x-6=0
2x2+8x+1=04x2-4x=0
x2-6x+1=9x-2x(2x-3)=5-2x
x2+9x-2=02x2-2
x+4=0
4x2-7x-7=0x2+9x=17
4x2-7x=x-10x2-4x+6=0
2x2+6x-5=06x2+4x=0
x2+2x-7=9x+3x(2x+1)=7-9x
x2-3x+1=02x2+4
x+7=0
2x2-3x-2=0x2-5x=3
3x2+10x=x-10x2+3x+1=0
3x2-3x-6=02x2+8x=0
x2-7x+6=5x-6x(3x-5)=3+8x
x2-10x-6=03x2+3
x-3=0
2x2-5x+5=0x2+4x=1
2x2+3x=x+2x2-2x-3=0
4x2-7x-5=03x2-7x=0
x2-9x+2=5x+4x(3x-5)=3+3x
x2-8x+10=03x2-3
x+10=0
3x2-2x-5=0x2-4x=17
4x2-5x=x-8x2-6x+1=0
4x2+9x+3=07x2-9x=0
x2+10x-10=6x+10x(4x-4)=6+5x
x2-3x-4=03x2+4
x+2=0
2x2-6x+7=0x2-4x=15
4x2+5x=x-1x2-6x-4=0
4x2+8x-6=08x2-9x=0
x2+7x-7=9x-5x(3x-2)=4+6x
x2-10x-2=02x2+4
x-5=0
2x2-6x-2=0x2-4x=3
3x2-8x=x-3x2-3x-8=0
2x2-8x-9=04x2+2x=0
x2+9x-2=5x-9x(2x+4)=9-6x
x2+8x-2=02x2-3
x+3=0
4x2-10x+2=0x2+5x=1
2x2-6x=x-6x2-6x+1=0
3x2+8x-7=09x2+8x=0
x2-2x-9=7x-7x(4x-5)=5-4x
x2-4x-2=03x2-4
x-8=0
4x2-8x-9=0x2+7x=1
2x2-6x=x+10x2+4x+4=0
4x2+5x+8=02x2+4x=0
x2-8x+6=9x-3x(2x-1)=8-8x
x2+7x-7=04x2+3
x-3=0
4x2-7x-1=0x2-7x=1
4x2+6x=x-9x2+6x-6=0
2x2-2x+7=09x2-5x=0
x2-6x+10=6x-5x(3x+1)=8+9x
x2+3x-5=02x2+2
x-1=0
3x2-4x+6=0x2-6x=7
4x2+7x=x-3x2-5x-5=0
3x2+3x-10=06x2+9x=0
x2+7x-7=9x-5x(4x-2)=4-5x
x2-9x+10=02x2-3
x-8=0
3x2+9x+10=0x2+8x=16
2x2+6x=x-5x2+10x-8=0
2x2+8x-7=04x2-3x=0
x2+7x+9=5x+9x(4x-5)=5+8x
x2+4x-10=04x2+2
x+2=0
4x2-7x+10=0x2-2x=12
3x2-9x=x+2x2+10x+7=0
3x2+5x-2=06x2+9x=0
x2-5x+1=7x+1x(2x+3)=5+7x
x2-4x-7=03x2+4
x+10=0
3x2+4x-9=0x2-4x=18
2x2-8x=x-10x2+9x-1=0
4x2-8x-9=07x2-6x=0
x2+3x+6=6x-1x(2x-1)=8+5x
x2-10x+6=04x2-3
x-7=0
2x2-10x-3=0x2-3x=19
2x2-4x=x-7x2-5x-4=0
4x2-8x-3=08x2-8x=0
x2-2x-6=6x+3x(3x-2)=2-3x
x2-2x+4=02x2+3
x+3=0
2x2+10x-6=0x2-4x=10
2x2+9x=x-9x2-5x-2=0
3x2+3x+5=04x2-6x=0
x2+6x-6=8x-9x(4x-2)=5+4x
x2-8x+5=04x2+4
x+10=0
4x2-7x-3=0x2-9x=6
2x2-6x=x+1x2-9x-1=0
3x2+3x-4=08x2+8x=0
x2+3x-5=9x+10x(2x-2)=3-5x
x2-3x-3=04x2-2
x-9=0
2x2-5x+3=0x2+7x=17
2x2+9x=x-7x2+7x-9=0
2x2-7x+1=03x2-9x=0
x2+6x+2=8x-7x(4x-1)=1-8x
x2-3x-10=04x2+4
x+4=0
3x2-6x+4=0x2+3x=5
2x2+3x=x+7x2-9x+6=0
2x2+9x+2=03x2-2x=0
x2-6x-3=8x-2x(3x-1)=5+5x
x2+10x-10=02x2-3
x-4=0
2x2+6x+1=0x2+3x=1
4x2+3x=x+10x2+5x-3=0
4x2+3x-6=02x2-6x=0
x2-2x+8=5x+8x(2x-2)=6+7x
x2+6x-8=03x2+4
x-3=0
4x2+10x-6=0x2+9x=8
3x2-9x=x+2x2+10x-7=0
3x2+2x+8=04x2-10x=0
x2+2x+6=7x+6x(4x-3)=1-5x
x2+7x-8=02x2+4
x+2=0
2x2-4x-1=0x2+9x=13
3x2-10x=x+1x2+10x+8=0
4x2-8x-5=07x2+3x=0
x2-9x-10=4x-6x(3x+4)=3+2x
x2+3x-7=03x2-3
x+8=0
4x2-4x-10=0x2+8x=9
4x2-8x=x-9x2+2x+2=0
3x2-5x-7=07x2+10x=0
x2+5x-3=9x+5x(3x-2)=2+5x
x2+7x-2=04x2-2
x+6=0
3x2-9x+3=0x2+2x=8
3x2-3x=x-2x2+10x+2=0
4x2+9x+1=06x2+4x=0
x2+2x-1=3x-7x(3x-1)=8-8x
x2+2x+10=04x2+4
x+2=0
4x2+4x+5=0x2+10x=13
3x2-8x=x-8x2+6x+7=0
4x2-6x+5=06x2+8x=0
x2-10x+4=8x+3x(3x+3)=3+7x
x2-2x+7=04x2-3
x+8=0
2x2-9x-9=0x2+7x=17
4x2-6x=x+1x2+10x+8=0
3x2+4x+10=08x2+4x=0
x2+6x-6=4x+5x(2x-2)=2-7x
x2+10x+9=02x2+4
x-4=0
2x2-9x+3=0x2+5x=14
4x2-2x=x+10x2-6x+3=0
2x2-3x+7=04x2+2x=0
x2-7x+1=4x+6x(4x+1)=4+3x
x2-7x+3=04x2+2
x-2=0
3x2-6x-2=0x2-3x=5
3x2+4x=x+7x2+2x-10=0
2x2-5x+6=04x2-3x=0
x2+10x-8=8x+4x(2x+5)=1+7x
x2+5x-10=02x2+3
x-2=0
4x2+2x+6=0x2+10x=2
2x2-3x=x+2x2-6x+5=0
4x2-8x-9=02x2-5x=0
x2-3x+9=3x+4x(3x+2)=1-3x
x2+10x-4=02x2+4
x-10=0
2x2+4x+7=0x2-2x=6
3x2-6x=x-2x2+8x+3=0
4x2-9x+1=08x2-6x=0
x2+5x+5=5x-5x(4x-1)=7-4x
x2-2x-7=04x2-3
x+3=0
2x2-10x+3=0x2+8x=18
3x2+10x=x+9x2-6x+1=0
3x2+4x-1=06x2-6x=0
x2-7x+3=7x-10x(2x-1)=8-2x
x2+5x-6=02x2-2
x-10=0
3x2+2x-1=0x2+5x=20
3x2+3x=x+9x2-4x-2=0
2x2-4x-5=07x2-9x=0
x2+6x-2=9x+10x(3x+2)=7-7x
x2-2x-3=04x2-3
x+9=0
4x2-3x-5=0x2+2x=11
3x2-9x=x+2x2+2x+7=0
3x2-8x+10=04x2+7x=0
x2-5x+10=7x+10x(2x+2)=9+5x
x2+8x-9=02x2-2
x-9=0
3x2-7x+9=0x2+3x=13
4x2+9x=x-1x2+2x+7=0
4x2-4x-2=02x2+8x=0
x2-2x-3=9x+4x(3x-1)=1+3x
x2-2x+1=02x2+3
x-8=0
2x2+3x-9=0x2-9x=9
3x2+8x=x+8x2+3x-1=0
3x2-5x-9=07x2-7x=0
x2-2x+6=3x-1x(3x-5)=9-2x
x2+3x-1=02x2-3
x+10=0
2x2+4x+3=0x2+3x=3
2x2+5x=x+10x2+8x-10=0
3x2-6x-5=09x2+9x=0
x2-6x-10=9x-10x(3x+2)=3+4x
x2+5x+2=04x2-2
x+4=0
4x2-7x+1=0x2+3x=20
2x2-10x=x-5x2+6x+6=0
2x2+2x-4=03x2-3x=0
x2-3x-7=7x-2x(2x-1)=9-8x
x2+6x+1=03x2-4
x-7=0
3x2-3x-4=0x2-5x=20
2x2-2x=x+3x2-9x-1=0
2x2-10x-5=04x2-4x=0
x2+5x+2=6x-6x(3x+5)=3+8x
x2+4x+7=03x2-2
x-2=0
3x2+7x+1=0x2+6x=3
3x2-7x=x-2x2-7x+5=0
2x2+7x+1=08x2-7x=0
x2-5x-3=7x-6x(4x-2)=9+7x
x2+6x+5=04x2+3
x-4=0
2x2+8x+1=0x2-8x=11
4x2+3x=x-8x2+6x-3=0
2x2-4x-2=09x2+10x=0
x2+10x+2=6x+9x(3x+2)=8-5x
x2+7x+10=04x2-3
x+7=0
4x2+10x-6=0x2+8x=4
2x2-9x=x-4x2-7x-2=0
3x2-10x+4=08x2-2x=0
x2-6x-7=4x-6x(2x+4)=7-6x
x2-8x-3=04x2+4
x+10=0
4x2+2x+7=0x2+5x=9
4x2+10x=x-1x2-6x-2=0
3x2+8x+1=07x2+9x=0
x2-10x+6=9x-5x(4x-3)=6+4x
x2-6x-9=04x2+2
x+3=0
2x2-8x+4=0x2-6x=10
3x2-8x=x-7x2+8x+9=0
4x2-5x+1=02x2-2x=0
x2+10x+5=8x-2x(2x-5)=6+7x
x2-4x+3=02x2-3
x-6=0
3x2+10x-7=0x2-10x=20
4x2-6x=x+4x2+8x-7=0
2x2+3x-1=04x2-8x=0
x2+6x+5=3x-3x(3x+4)=9-7x
x2+7x-7=04x2+2
x-9=0
2x2-6x+5=0x2-2x=4
3x2-6x=x-6x2-6x+4=0
2x2-10x-3=06x2+8x=0
x2-5x+5=6x-5x(3x-3)=9+6x
x2+7x-7=02x2-2
x+1=0
3x2+6x-6=0x2-6x=7
2x2+10x=x-7x2-3x-8=0
4x2-7x+4=09x2+6x=0
x2-5x+7=4x+9x(4x-4)=9+4x
x2+8x-7=04x2-4
x+2=0
3x2-4x-6=0x2+2x=20
4x2+7x=x+1x2-3x-2=0
2x2+8x-5=06x2+9x=0
x2+9x+5=9x+9x(4x-2)=1-9x
x2+10x+9=04x2-3
x-4=0
4x2+7x+1=0x2-10x=2
2x2+9x=x-3x2+7x+10=0
4x2+5x+7=07x2-9x=0
x2+6x-3=5x-10x(3x-1)=1+3x