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31.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31.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31
x2+4x+10=03x2+4
x+10=0
4x2-5x+3=0x2+6x=2
3x2+10x=x-9x2+3x+8=0
2x2+3x+3=06x2+10x=0
x2-3x-10=9x-3x(2x-5)=3+8x
x2+9x+4=02x2-3
x+4=0
3x2+4x-3=0x2-2x=11
3x2+10x=x-2x2+4x-1=0
4x2-8x+1=08x2-2x=0
x2+5x+2=9x-4x(2x-4)=6+9x
x2+5x+7=02x2-4
x-8=0
3x2-3x+4=0x2+3x=5
2x2+5x=x+8x2+8x-2=0
4x2+8x-3=02x2-5x=0
x2+8x+5=7x-1x(3x-1)=7+2x
x2-2x-7=03x2-4
x-3=0
3x2-9x-8=0x2+9x=10
3x2-6x=x+7x2-9x+10=0
4x2-6x+8=06x2+6x=0
x2+6x+4=6x+5x(4x-4)=5+5x
x2-2x-10=02x2+2
x-3=0
4x2+3x-8=0x2+2x=5
3x2+7x=x-4x2+2x-3=0
2x2+9x+5=06x2+6x=0
x2+10x+4=9x-10x(2x-4)=6-6x
x2-4x+6=03x2+2
x+8=0
4x2-8x-3=0x2-3x=10
3x2-5x=x-1x2-6x-8=0
4x2-10x-7=06x2-3x=0
x2-5x+10=9x+2x(3x+3)=3+3x
x2+4x-2=03x2+3
x+2=0
2x2-6x-2=0x2-9x=4
2x2+3x=x-2x2-8x-4=0
2x2-5x+9=04x2-2x=0
x2-8x+4=6x-1x(3x-1)=7+4x
x2+3x-5=03x2+2
x+5=0
2x2-2x+7=0x2+8x=16
4x2-4x=x+6x2-8x+1=0
2x2+3x-10=08x2-2x=0
x2-2x-7=6x-1x(3x-3)=7+3x
x2-6x+7=04x2-2
x-5=0
4x2-9x-10=0x2+9x=6
2x2-9x=x+8x2+3x-7=0
4x2-10x-1=09x2+4x=0
x2-10x-3=6x+8x(2x-4)=5-4x
x2-2x-10=04x2+3
x-7=0
4x2-3x-7=0x2+9x=19
3x2+4x=x-10x2+5x+5=0
2x2+5x-7=08x2+3x=0
x2-6x+1=5x-7x(2x+5)=7+9x
x2-9x-2=03x2+4
x-4=0
3x2+6x-7=0x2+6x=11
3x2+6x=x-8x2-3x-8=0
3x2-3x+2=03x2+6x=0
x2-3x+1=4x+10x(3x+1)=8-9x
x2+8x+1=04x2+2
x+1=0
2x2-2x-3=0x2+8x=12
2x2-3x=x-6x2-9x+4=0
3x2-10x-8=09x2+10x=0
x2+5x-4=9x+5x(3x+4)=2-5x
x2+5x-8=03x2-3
x-10=0
4x2-5x-6=0x2-8x=16
4x2-7x=x+2x2+8x-2=0
4x2-4x-4=08x2+7x=0
x2+4x-8=8x+7x(3x+3)=9-3x
x2+3x+5=04x2+3
x-8=0
4x2-6x-8=0x2+5x=18
2x2-9x=x-10x2+2x-3=0
3x2-6x-3=06x2-9x=0
x2-5x+10=8x-2x(3x-3)=1-4x
x2+6x+9=02x2+4
x+5=0
3x2-3x-2=0x2+8x=11
2x2-9x=x-4x2-10x+3=0
4x2+7x+8=08x2-4x=0
x2+7x+9=8x+5x(4x-3)=1+9x
x2-8x+6=02x2-2
x-1=0
2x2+2x+10=0x2-3x=4
2x2-4x=x-3x2+6x-10=0
3x2+7x+3=03x2+2x=0
x2+8x+10=2x-2x(3x-5)=8+8x
x2+10x-1=04x2+4
x-8=0
3x2+2x-9=0x2-9x=9
3x2-10x=x+3x2-9x+4=0
4x2+7x-8=04x2-6x=0
x2+10x-6=8x+6x(3x+5)=2+6x
x2-8x-2=03x2+2
x+9=0
2x2-2x+2=0x2-2x=7
2x2+3x=x+4x2-5x+8=0
3x2+6x-1=08x2+6x=0
x2-4x+4=5x+4x(3x-4)=4+7x
x2-8x+4=02x2-3
x-5=0
3x2+5x-8=0x2-7x=7
2x2-3x=x-10x2-6x-10=0
2x2+7x-8=04x2-6x=0
x2-6x+8=5x+8x(3x-4)=1-9x
x2-4x-1=03x2+3
x+10=0
3x2+7x+10=0x2+5x=13
3x2-4x=x+10x2+6x-9=0
4x2+8x+9=05x2-6x=0
x2-4x-6=6x-6x(2x+2)=6+5x
x2+2x-10=04x2+2
x+2=0
4x2-10x+6=0x2-4x=10
2x2-3x=x+10x2+4x-6=0
2x2+9x-9=07x2+8x=0
x2-2x+4=8x-5x(3x+4)=2+6x
x2-2x-9=02x2-4
x-1=0
3x2+2x+1=0x2+8x=18
3x2+2x=x+8x2-5x+3=0
4x2-4x+7=06x2-8x=0
x2+2x+7=4x-8x(2x-5)=5+6x
x2-2x-8=04x2+2
x-4=0
4x2+6x-7=0x2-7x=4
4x2+10x=x+1x2+9x-7=0
3x2+7x-8=05x2+6x=0
x2+5x-9=3x+6x(3x+5)=7-8x
x2+9x+10=04x2+2
x+3=0
4x2-3x-1=0x2-8x=12
3x2+5x=x+2x2-2x-10=0
4x2-9x-1=06x2-4x=0
x2+7x-3=9x+10x(3x-4)=3+4x
x2-8x-7=04x2-2
x-4=0
4x2-7x+6=0x2+8x=4
3x2+6x=x+3x2-8x+7=0
4x2-5x+3=02x2-5x=0
x2-3x-8=2x-1x(3x-5)=8+2x
x2+3x+5=04x2+3
x-2=0
4x2-10x+6=0x2-10x=17
4x2+5x=x-7x2-10x+2=0
2x2+10x-7=06x2-9x=0
x2+9x+2=5x+9x(3x+1)=6-7x
x2-7x+6=04x2+2
x+2=0
2x2-4x-9=0x2+7x=6
2x2+2x=x+3x2-7x-8=0
3x2-7x-5=09x2-6x=0
x2-4x-5=6x+9x(3x-2)=2+9x
x2+2x-1=02x2-4
x+8=0
4x2-4x+8=0x2+6x=2
3x2+10x=x-7x2-9x+2=0
3x2+5x-7=08x2-6x=0
x2-9x-8=4x-10x(4x-4)=6-7x
x2+9x-8=03x2-2
x+9=0
3x2+3x-5=0x2-5x=3
4x2+5x=x-8x2-3x+9=0
3x2-9x-6=03x2-8x=0
x2+5x+5=9x-2x(4x-2)=5-6x
x2+5x-8=02x2-3
x+2=0
2x2+8x+2=0x2+5x=18
4x2-3x=x+2x2+5x+9=0
4x2-8x+9=06x2-10x=0
x2-6x+7=7x+1x(4x+5)=2+9x
x2+10x-1=03x2-2
x+5=0
4x2-4x+8=0x2-5x=20
2x2+5x=x+9x2-10x-4=0
2x2-2x-1=06x2-3x=0
x2+7x+2=9x-1x(2x+3)=1-2x
x2+9x-7=03x2+4
x+5=0
3x2-8x+6=0x2-2x=6
4x2-2x=x+5x2+8x-6=0
4x2+8x-5=04x2+3x=0
x2+10x-5=3x-1x(2x-5)=3-4x
x2-6x-1=02x2-2
x-1=0
3x2-8x+3=0x2-9x=6
2x2-9x=x-7x2-5x+4=0
4x2-6x+4=08x2+7x=0
x2+7x+10=2x+9x(3x-1)=9-6x
x2+6x-1=03x2+3
x-4=0
3x2+8x-10=0x2-6x=9
2x2+8x=x+5x2+6x+4=0
3x2-4x-4=02x2+4x=0
x2+8x+3=4x-6x(3x-4)=7+3x
x2+5x+8=03x2-3
x+2=0
4x2-4x+6=0x2+9x=16
3x2-3x=x+10x2-4x+1=0
4x2+3x+5=07x2+8x=0
x2+7x-9=4x+7x(2x-4)=5+9x
x2+4x-7=04x2-2
x+5=0
3x2+8x-2=0x2+8x=5
2x2+4x=x-10x2-8x-6=0
3x2-4x-6=06x2-2x=0
x2-8x+7=9x+7x(4x-5)=1-4x
x2+8x+9=03x2+4
x-3=0
3x2-6x-1=0x2-4x=11
3x2-10x=x+8x2-6x+10=0
3x2+5x-2=06x2-6x=0
x2-3x-10=7x+8x(4x-1)=9+8x
x2+8x+6=03x2+2
x-10=0
3x2+5x-4=0x2-3x=11
4x2+5x=x-3x2+2x+9=0
4x2+4x-3=04x2-2x=0
x2+7x-9=7x+5x(3x+2)=5+9x
x2+8x+8=04x2-3
x+5=0
4x2-4x+8=0x2-2x=15
2x2-7x=x+2x2+10x-6=0
2x2+10x+6=07x2-7x=0
x2-7x-4=6x-6x(3x-3)=8-6x
x2-9x-10=03x2+4
x-10=0
3x2+10x-7=0x2+7x=19
2x2+2x=x-8x2+5x-9=0
2x2-3x-9=05x2+4x=0
x2-5x-2=6x+6x(2x+2)=3-5x
x2+9x-1=03x2+3
x-8=0
3x2-10x-9=0x2+3x=12
2x2-10x=x-8x2-2x+2=0
4x2+6x+7=03x2-6x=0
x2+4x-1=3x+3x(2x-4)=6-5x
x2-4x-4=04x2-4
x-7=0
4x2-7x+9=0x2-2x=18
3x2+7x=x+9x2-9x-10=0
4x2-2x-10=02x2-3x=0
x2+3x+1=9x-6x(2x-3)=1+6x
x2-2x+8=03x2-2
x+9=0
4x2-6x+2=0x2+10x=4
3x2-7x=x+4x2-2x+5=0
3x2-2x+10=03x2-6x=0
x2+8x-7=8x+4x(3x+4)=6-8x
x2-8x+1=02x2-3
x+2=0
4x2-3x-5=0x2-6x=12
2x2+5x=x+2x2-10x-6=0
3x2-5x-2=06x2+2x=0
x2-9x+2=3x+4x(4x+3)=9+7x
x2-10x-1=04x2+2
x+8=0
3x2+6x+5=0x2-2x=8
3x2-4x=x+9x2-9x-9=0
2x2+2x+8=04x2+7x=0
x2+10x+10=5x-3x(3x-5)=5-2x
x2+7x+5=03x2+4
x+4=0
4x2+4x-3=0x2-5x=11
4x2+2x=x+8x2+9x+3=0
4x2-10x+8=02x2-2x=0
x2-6x+4=7x-10x(3x-5)=6+4x
x2+8x+2=02x2-4
x+10=0
2x2+9x-5=0x2+9x=12
3x2+5x=x+8x2+9x-8=0
4x2+4x+6=02x2+9x=0
x2+3x+1=4x-9x(3x-3)=1+3x
x2-8x+2=02x2+2
x+5=0
4x2-9x-5=0x2-10x=16
3x2-2x=x-6x2-5x-5=0
2x2+5x-4=07x2+10x=0
x2+9x-8=5x+4x(3x+1)=8-3x
x2-9x+10=02x2+2
x+5=0
2x2-7x+9=0x2-7x=5
3x2-4x=x+9x2+5x+9=0
3x2-10x-2=05x2-5x=0
x2-7x-1=7x+1x(2x-2)=8-9x
x2+2x-4=02x2+4
x-8=0
2x2+5x-3=0x2-5x=1
3x2+10x=x-7x2-9x+10=0
4x2-6x+4=04x2+3x=0
x2+6x-1=6x-10x(3x-2)=9-5x
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