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70.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70.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70
x2+10x+6=04x2+2
x-1=0
4x2-8x+7=0x2+7x=12
4x2-2x=x+7x2-2x-6=0
3x2-3x-8=02x2-6x=0
x2-9x+2=7x-2x(3x+1)=8+2x
x2-6x+4=03x2+2
x+7=0
4x2-9x+9=0x2-6x=8
2x2-7x=x-6x2+7x-6=0
2x2+2x-5=09x2-10x=0
x2+4x-9=4x+10x(4x+5)=7-7x
x2-10x+9=02x2+3
x+2=0
3x2-4x+3=0x2+5x=14
3x2+7x=x+4x2-8x-4=0
4x2+8x+3=04x2+10x=0
x2+3x+9=3x-10x(4x-5)=6+6x
x2+5x+6=03x2+4
x+1=0
3x2-5x+9=0x2-3x=4
2x2-2x=x+7x2+3x-8=0
4x2+7x-7=05x2-4x=0
x2-4x+5=7x-2x(3x+3)=5-4x
x2+5x+5=03x2+3
x-1=0
2x2+3x-7=0x2-9x=20
4x2+4x=x+5x2-7x+3=0
2x2-3x+2=09x2-9x=0
x2-6x+4=3x-5x(4x-5)=6+4x
x2-6x+8=03x2-2
x+2=0
2x2+7x-9=0x2-9x=4
3x2-4x=x-1x2+3x+6=0
4x2+2x+5=05x2+7x=0
x2-6x+5=5x+6x(3x-5)=2-4x
x2+10x-8=02x2+3
x+1=0
3x2+6x+8=0x2-10x=7
4x2-2x=x-4x2+6x-5=0
4x2-5x-1=09x2+2x=0
x2-8x-5=2x+9x(3x+1)=9+2x
x2-8x-1=03x2+3
x+3=0
3x2+6x+1=0x2-2x=6
3x2+2x=x-3x2-9x-8=0
4x2+10x-9=07x2+8x=0
x2-4x-9=9x+5x(3x+4)=4+6x
x2+6x-5=02x2-3
x+3=0
2x2+4x+4=0x2-8x=10
2x2+6x=x-2x2+6x+7=0
2x2+6x+8=05x2-7x=0
x2-5x-8=9x-5x(2x+2)=4-8x
x2+4x-9=04x2-2
x+3=0
2x2+4x-1=0x2+8x=6
4x2+8x=x+10x2+6x-4=0
3x2-8x-7=08x2-7x=0
x2-4x+3=9x+3x(3x-2)=6+2x
x2-2x+4=03x2-3
x+10=0
2x2+2x-2=0x2+5x=19
2x2-6x=x-8x2-6x+5=0
3x2-3x-9=05x2+9x=0
x2+3x-3=7x-5x(2x-5)=2+4x
x2-2x-8=04x2-3
x+6=0
3x2+7x-4=0x2-7x=19
4x2-2x=x-6x2+7x-10=0
4x2+10x-5=04x2-7x=0
x2-6x+9=8x-4x(4x+1)=1-2x
x2+6x-8=04x2-3
x+10=0
4x2+8x+2=0x2-9x=11
3x2-6x=x-3x2-8x+4=0
2x2+2x+3=03x2+4x=0
x2-2x+9=4x+2x(4x+5)=4+8x
x2-6x-10=03x2+4
x+8=0
4x2-6x+3=0x2+3x=16
4x2+5x=x-6x2-4x-6=0
2x2-8x-9=07x2+5x=0
x2-7x+6=6x-9x(3x+4)=8+3x
x2+6x+7=02x2-2
x+1=0
4x2+4x+6=0x2+9x=17
4x2-8x=x+3x2+9x+6=0
3x2+9x-6=02x2+9x=0
x2+6x-8=3x-3x(3x-1)=6+3x
x2-8x+9=04x2-2
x+2=0
4x2-6x-5=0x2+8x=4
2x2-5x=x+5x2-9x+2=0
3x2-3x-3=03x2-8x=0
x2-8x-7=9x+9x(2x-4)=4-9x
x2-4x-9=04x2-3
x-4=0
2x2-9x-1=0x2+4x=10
3x2+6x=x+7x2-5x+6=0
4x2+9x+7=08x2-4x=0
x2-3x-5=8x-1x(3x+2)=9-7x
x2-3x-3=04x2-2
x+6=0
4x2-2x+3=0x2+10x=4
2x2+3x=x+9x2+10x-6=0
4x2-4x-7=02x2-10x=0
x2-3x-8=9x-9x(2x+1)=2+7x
x2+10x-9=03x2-3
x-6=0
3x2+9x-6=0x2+7x=2
4x2+9x=x+3x2+10x-2=0
2x2+3x-2=06x2+7x=0
x2-6x+3=5x-9x(4x+5)=1+3x
x2-7x-4=02x2-4
x-10=0
3x2+6x-10=0x2+3x=14
2x2-10x=x-1x2-3x+6=0
3x2+7x-6=04x2+4x=0
x2-7x+4=3x+7x(4x-1)=2-4x
x2-2x+8=03x2+2
x+7=0
3x2+4x-9=0x2+8x=16
4x2-9x=x+6x2-5x-2=0
3x2+6x-3=02x2+2x=0
x2+5x+7=6x+2x(2x+3)=7-2x
x2-3x-10=03x2+2
x-4=0
2x2+6x-7=0x2+4x=20
2x2+10x=x+10x2-5x-8=0
2x2+5x+9=08x2-6x=0
x2+10x-2=6x-9x(3x+3)=1-7x
x2+5x-2=03x2+2
x+2=0
3x2+5x-6=0x2-9x=3
2x2+6x=x-10x2-5x+9=0
2x2-6x-1=02x2+10x=0
x2-10x-9=6x-1x(2x+1)=3-7x
x2-6x-6=03x2+2
x-5=0
2x2-10x-5=0x2+6x=7
3x2+6x=x-5x2-2x-1=0
4x2-9x-9=09x2-8x=0
x2-2x-8=4x+8x(4x+4)=8-7x
x2+8x-3=03x2+2
x-3=0
4x2+8x+3=0x2+2x=4
2x2-5x=x-1x2-6x-8=0
2x2+9x-8=09x2+10x=0
x2+8x-8=2x-1x(3x+1)=3+3x
x2+8x+3=04x2+4
x+3=0
4x2-6x+2=0x2-2x=7
4x2-9x=x-8x2+6x+1=0
4x2+3x+7=04x2-4x=0
x2+3x-1=8x-7x(2x+4)=9+5x
x2+5x+5=02x2+4
x-2=0
4x2-10x-10=0x2+9x=7
4x2+5x=x-8x2-5x-1=0
3x2-9x-9=05x2+2x=0
x2-9x+9=3x+6x(4x+1)=6-3x
x2+10x+8=03x2+3
x-4=0
2x2-8x+1=0x2-10x=14
2x2-8x=x-8x2+5x+2=0
3x2-2x-7=04x2+2x=0
x2+4x+8=3x-8x(2x+4)=2+6x
x2-9x-1=04x2+2
x+7=0
3x2+10x+2=0x2+10x=13
2x2+8x=x-10x2+2x+9=0
4x2-2x+10=07x2+8x=0
x2+10x+1=4x-6x(2x-1)=7-8x
x2-8x-1=02x2-3
x-1=0
4x2+7x+3=0x2+10x=9
2x2-4x=x+1x2+5x+8=0
4x2+6x+10=09x2+6x=0
x2+3x-1=7x-9x(3x+2)=2-6x
x2+4x-3=02x2-3
x+6=0
4x2-2x-6=0x2-10x=15
4x2+9x=x-1x2+9x-5=0
3x2-7x-1=04x2-4x=0
x2-9x-8=9x+2x(2x+5)=7-2x
x2+3x-5=03x2-4
x+10=0
2x2-6x-2=0x2+9x=9
3x2+5x=x+8x2-10x+10=0
2x2+9x+8=02x2-9x=0
x2-7x-2=6x+6x(3x+5)=9+2x
x2+10x-4=04x2-3
x-2=0
2x2+8x-8=0x2-7x=6
3x2+5x=x+1x2-3x+9=0
4x2-3x-1=02x2-6x=0
x2-3x+10=8x+1x(4x-4)=4+4x
x2-10x+1=02x2+2
x+10=0
4x2+5x+3=0x2-3x=15
2x2+3x=x+6x2+7x+9=0
4x2-9x+7=03x2-10x=0
x2-10x-7=4x-1x(3x-1)=7-3x
x2-2x+2=02x2-3
x-10=0
4x2-2x-4=0x2+7x=4
2x2-8x=x-1x2-2x-6=0
2x2+7x-6=02x2-8x=0
x2+2x-10=2x+2x(4x+3)=6+5x
x2+4x-2=03x2+2
x+6=0
3x2+5x-8=0x2-5x=16
2x2+8x=x-7x2-3x-2=0
4x2+3x-10=08x2-4x=0
x2-5x+7=2x-3x(4x+3)=6-8x
x2-9x-6=02x2+2
x-5=0
3x2+9x+3=0x2-9x=6
4x2-5x=x-4x2+6x-1=0
3x2-4x+6=04x2+6x=0
x2+5x-8=4x-2x(2x+2)=5-8x
x2+2x+4=02x2-3
x-10=0
4x2-9x-7=0x2-8x=8
2x2-10x=x+3x2+8x+3=0
3x2+2x+3=06x2-3x=0
x2+5x-2=9x-10x(2x+1)=9-8x
x2+7x+8=03x2-4
x+1=0
4x2+3x+9=0x2+7x=12
4x2+9x=x-4x2+7x-5=0
2x2-9x+1=02x2+4x=0
x2-9x-6=5x-7x(3x-2)=2-5x
x2-9x-8=04x2-2
x+6=0
3x2-2x-7=0x2+4x=14
4x2-4x=x+9x2-10x+6=0
4x2+7x+10=04x2-7x=0
x2+8x+9=2x+9x(2x+4)=6-2x
x2+5x+3=04x2+2
x-3=0
4x2-7x+2=0x2+10x=12
2x2-10x=x-10x2+8x+4=0
4x2-9x-5=08x2-2x=0
x2-2x-2=3x+3x(3x+3)=2+3x
x2+8x-4=03x2+3
x+8=0
2x2+5x+5=0x2+6x=16
3x2-8x=x-5x2+8x-10=0
3x2-8x+3=02x2+10x=0
x2+4x+6=6x-10x(4x-3)=1-9x
x2-9x+8=03x2+2
x-1=0
4x2+8x+4=0x2-6x=2
3x2-3x=x-6x2+5x-6=0
2x2-10x-10=07x2-2x=0
x2-6x+10=5x-10x(2x-2)=1-3x
x2-9x+10=04x2-3
x-4=0
2x2-4x+1=0x2+5x=12
3x2+3x=x+6x2+5x-10=0
4x2+6x+3=09x2+4x=0
x2-5x+6=6x+10x(4x-2)=4-4x
x2+4x-5=04x2+4
x-8=0
2x2-8x-5=0x2-10x=19
2x2-3x=x+2x2+8x-3=0
2x2-2x-5=06x2-10x=0
x2+10x+1=8x+8x(3x+2)=1-7x
x2+2x-2=04x2-3
x+7=0
2x2+8x+6=0x2-9x=12
3x2-4x=x+5x2+8x-1=0
3x2+3x+8=07x2-6x=0
x2+2x+8=4x+4x(4x+2)=1-5x
x2+8x+8=02x2-2
x-5=0
4x2-8x-4=0x2+9x=17
3x2-7x=x+9x2-4x+3=0
4x2+7x-2=06x2+2x=0
x2-6x-10=5x+9x(3x-5)=5-2x
x2-4x-2=03x2+2
x+10=0
4x2-6x+2=0x2-9x=6
3x2-3x=x+5x2-9x-4=0
4x2-3x+4=04x2+9x=0
x2+2x-6=6x-2x(4x-3)=9-4x
x2+3x-1=04x2+3
x+8=0
2x2+4x+5=0x2+9x=17
4x2+7x=x-9x2+2x+3=0
4x2+10x+1=05x2+2x=0
x2+6x-7=4x-6x(3x+5)=3-6x
x2+5x+5=03x2+3
x-4=0
2x2-6x+5=0x2-9x=11
3x2-2x=x-7x2+3x+5=0
4x2+4x-8=05x2-4x=0
x2-7x-7=4x+2x(4x-5)=8-7x
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