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41.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41.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41
x2-7x-7=02x2+2
x+7=0
3x2+10x-1=0x2+8x=15
2x2+3x=x-10x2-3x-3=0
4x2+3x+10=05x2-7x=0
x2+6x-9=4x-1x(2x-2)=9-3x
x2-4x-3=04x2+2
x-1=0
2x2+2x-1=0x2-2x=7
3x2-5x=x-2x2-8x-3=0
4x2-2x-7=09x2-6x=0
x2-10x-2=6x-6x(2x-2)=7+4x
x2+9x-2=02x2+4
x-1=0
2x2-6x+4=0x2+5x=3
2x2+6x=x-7x2+10x+4=0
2x2-9x-2=07x2+10x=0
x2+3x-4=8x+1x(3x-1)=7+9x
x2-5x+5=03x2-2
x+8=0
3x2+2x-2=0x2+6x=13
2x2+3x=x+10x2+4x-5=0
4x2-7x-8=08x2-9x=0
x2-4x-5=4x-7x(3x+2)=3+2x
x2+9x+7=02x2-3
x-1=0
2x2+5x+1=0x2+2x=15
3x2-5x=x+8x2+3x-10=0
2x2+3x-9=04x2-8x=0
x2-7x-7=5x-6x(3x+4)=3-3x
x2+7x-5=03x2+3
x-8=0
3x2+2x-6=0x2+9x=20
4x2-9x=x-3x2-7x-9=0
3x2+4x-3=04x2+2x=0
x2-4x+8=9x+1x(3x-4)=1-9x
x2+9x+3=04x2+3
x+2=0
4x2-3x+8=0x2+10x=12
2x2+4x=x-10x2-5x+10=0
2x2+6x+6=02x2-8x=0
x2-10x+2=8x-5x(4x+3)=1+9x
x2+10x+6=02x2-2
x+5=0
3x2+5x-7=0x2-8x=3
4x2+6x=x-8x2+6x+10=0
2x2+8x-9=03x2+8x=0
x2-2x-4=4x-6x(4x+2)=4-2x
x2+5x-4=02x2+4
x+9=0
4x2+6x-5=0x2-10x=20
2x2+7x=x+1x2+4x-2=0
2x2-4x+4=07x2+10x=0
x2+6x+3=8x-2x(2x-1)=9-7x
x2-9x+9=03x2-4
x-8=0
3x2-7x-8=0x2+2x=14
2x2-5x=x-6x2+7x-8=0
2x2+9x-5=03x2+8x=0
x2-2x-7=7x+3x(2x+5)=7-6x
x2-6x-9=02x2+3
x+9=0
2x2+2x-7=0x2-8x=11
2x2+7x=x+4x2-4x+2=0
4x2-5x-7=05x2-3x=0
x2-8x+3=3x-1x(2x-2)=3+8x
x2-9x+6=03x2+4
x-4=0
3x2+3x+2=0x2-7x=11
3x2-6x=x-8x2+8x+1=0
2x2+6x+8=03x2+8x=0
x2+4x+4=4x-1x(2x+5)=8+3x
x2-8x+9=03x2-2
x-10=0
4x2+9x+7=0x2-5x=2
2x2+10x=x+6x2+2x-9=0
3x2-3x+2=06x2-7x=0
x2-9x-2=2x-2x(2x+4)=3+5x
x2+8x-10=02x2+4
x+1=0
3x2+2x-8=0x2-8x=3
2x2+2x=x-8x2+4x-7=0
4x2-10x-5=08x2+7x=0
x2+10x+2=2x+7x(2x-2)=7+3x
x2+4x+6=02x2-4
x-10=0
4x2-2x-2=0x2+3x=10
3x2+3x=x-7x2+10x+1=0
2x2-7x-8=02x2+5x=0
x2-7x-5=8x-5x(4x-1)=9+3x
x2-7x+3=04x2+4
x-4=0
4x2+9x+2=0x2+4x=13
2x2-6x=x-1x2+2x-6=0
2x2-4x-10=02x2-5x=0
x2+5x+2=8x+9x(3x+3)=1+4x
x2-9x-9=03x2-2
x+9=0
3x2+3x+8=0x2+7x=9
3x2+9x=x+9x2+9x-7=0
3x2+7x+2=04x2-8x=0
x2+5x-7=3x-6x(3x-1)=4-3x
x2+2x+4=03x2-2
x-9=0
2x2+6x-10=0x2+2x=6
3x2+9x=x+2x2+8x-2=0
3x2+9x-2=08x2-7x=0
x2+4x-9=5x-9x(2x-1)=9-6x
x2+9x+1=03x2-4
x-10=0
2x2-9x-1=0x2-7x=20
4x2-3x=x-1x2-7x+6=0
2x2-7x+7=09x2-9x=0
x2-9x-5=9x+1x(2x+5)=2-3x
x2-6x-5=04x2+3
x+5=0
4x2+7x+10=0x2-8x=20
4x2+6x=x+10x2-8x+2=0
4x2-7x-4=06x2+4x=0
x2-7x+7=7x+9x(4x+1)=2-5x
x2-5x-7=02x2+3
x+3=0
2x2+10x+1=0x2-9x=2
2x2+7x=x+2x2+5x-3=0
2x2+7x+4=05x2-10x=0
x2-4x+6=9x+2x(2x+3)=7-2x
x2-10x+9=04x2-4
x+10=0
4x2-5x+1=0x2-4x=8
2x2+5x=x-6x2+10x+3=0
2x2+5x-1=03x2+3x=0
x2-3x+5=5x+1x(2x-1)=5+2x
x2-4x+5=04x2+3
x-3=0
4x2-3x-9=0x2-8x=20
4x2+8x=x+1x2-5x+1=0
3x2+4x-6=09x2+8x=0
x2+4x-2=6x-4x(2x-1)=9+2x
x2-9x+9=02x2-3
x-8=0
2x2-3x+10=0x2+3x=9
4x2-3x=x-2x2+7x+6=0
4x2-6x+1=05x2-2x=0
x2-9x+6=9x-4x(4x-2)=9-3x
x2-2x-3=02x2+3
x+4=0
4x2+8x-9=0x2+8x=2
3x2+2x=x-8x2+2x+7=0
3x2-3x-7=08x2+3x=0
x2+8x-8=4x+9x(3x+2)=2+8x
x2-5x-6=04x2-3
x-7=0
2x2+4x+10=0x2-9x=19
2x2+2x=x-9x2-2x-5=0
4x2+8x+9=07x2+5x=0
x2-10x-7=9x-3x(4x-1)=8+3x
x2-5x-9=02x2+4
x+8=0
2x2-9x-3=0x2-7x=7
3x2-5x=x-7x2-2x-1=0
4x2-10x-9=09x2+7x=0
x2-6x+3=3x+5x(4x-4)=9+9x
x2-4x+2=03x2+3
x-2=0
2x2+2x+5=0x2+9x=16
2x2-8x=x+6x2-5x+6=0
3x2+6x+9=08x2+3x=0
x2-5x-10=4x-8x(2x+1)=5-3x
x2+7x+10=03x2+3
x+2=0
2x2+8x-2=0x2+3x=17
3x2-4x=x-1x2+7x+10=0
4x2-6x+5=04x2-6x=0
x2-8x+9=9x-4x(4x+4)=2-5x
x2+4x-9=03x2+3
x+6=0
3x2+7x+1=0x2-4x=5
4x2-7x=x-5x2-10x+5=0
4x2+7x-8=02x2-3x=0
x2-8x+4=8x-3x(2x+1)=9+7x
x2-10x-6=03x2-2
x-9=0
3x2+5x-6=0x2-6x=20
4x2-8x=x+4x2+3x+8=0
3x2-6x-3=03x2-4x=0
x2+9x+5=4x+9x(2x+2)=1-6x
x2-6x-4=03x2+3
x+6=0
3x2-8x-6=0x2+9x=9
4x2-9x=x+5x2-4x+5=0
3x2-6x+8=08x2+8x=0
x2-8x-7=5x+3x(2x-4)=4-3x
x2-6x-8=02x2+3
x+7=0
3x2+10x+3=0x2-6x=7
4x2-2x=x-1x2-8x+7=0
3x2+6x-2=04x2-6x=0
x2-3x-8=9x+9x(4x+3)=2-5x
x2+7x+1=03x2+2
x+6=0
2x2+2x+8=0x2+7x=17
3x2+2x=x+1x2-5x+7=0
3x2-4x-10=08x2-6x=0
x2-8x-1=5x+7x(4x+4)=6-8x
x2-10x+9=04x2-3
x+2=0
3x2-2x-4=0x2+4x=18
4x2+6x=x-7x2-5x+5=0
2x2-10x+10=08x2+4x=0
x2+8x-4=6x+10x(4x+1)=4-3x
x2-5x-10=04x2-3
x-9=0
4x2-8x+3=0x2-9x=2
3x2-10x=x+7x2+9x+6=0
3x2+5x-7=02x2+2x=0
x2-2x+10=6x+7x(2x-5)=2-8x
x2-2x-4=02x2+4
x-7=0
4x2+3x+1=0x2+10x=20
3x2-9x=x+3x2+10x-10=0
2x2-9x+10=09x2+6x=0
x2+3x+3=6x+2x(4x-4)=5+9x
x2+6x-7=03x2+4
x+10=0
3x2-3x+1=0x2+5x=6
2x2+10x=x+2x2-7x+2=0
4x2-7x-5=03x2+9x=0
x2-8x-7=2x-8x(2x+5)=2+3x
x2+4x+1=02x2-3
x-3=0
2x2+7x-4=0x2-8x=13
4x2-8x=x-10x2-9x+3=0
2x2+5x-10=07x2+6x=0
x2+6x-5=3x+10x(2x+4)=2+5x
x2-9x-7=02x2+3
x+1=0
2x2+8x-4=0x2-9x=16
2x2+4x=x+4x2-2x-5=0
3x2+5x-5=03x2+8x=0
x2+6x+5=4x+6x(3x-5)=9+5x
x2-2x+4=03x2-3
x+1=0
2x2-7x-8=0x2+9x=20
3x2+5x=x+6x2+9x+5=0
2x2-2x-2=08x2-8x=0
x2-4x-1=4x+10x(2x+1)=2-5x
x2-4x-1=04x2-4
x+8=0
2x2-5x+10=0x2-9x=11
3x2-3x=x+10x2+6x+10=0
2x2-4x-8=08x2-8x=0
x2+9x+9=3x+3x(4x-1)=1-4x
x2+3x+2=02x2+2
x-2=0
2x2-8x+1=0x2-8x=14
3x2-9x=x+7x2+10x-10=0
2x2+3x+7=09x2-3x=0
x2-4x+3=2x+6x(4x+2)=1+4x
x2-5x+2=02x2-3
x+10=0
4x2+7x+7=0x2-2x=11
2x2+8x=x-10x2+2x-10=0
3x2+4x+7=05x2-6x=0
x2-3x-7=6x+5x(4x+5)=6-8x
x2+6x-4=03x2+2
x+4=0
2x2-6x+3=0x2+4x=3
3x2+10x=x-5x2-3x-2=0
2x2+8x+5=03x2-3x=0
x2+8x-6=8x+2x(4x+3)=3-7x
x2+10x+4=03x2+2
x-4=0
3x2+2x+1=0x2+10x=13
2x2-3x=x+7x2-4x+10=0
3x2+10x-3=08x2+7x=0
x2+10x-7=7x-4x(2x+4)=6-5x
x2-9x-3=03x2-4
x-6=0
2x2+9x+1=0x2+3x=6
2x2+6x=x+1x2-10x-6=0
3x2-7x-8=04x2-3x=0
x2+6x-6=5x+4x(2x+3)=9+9x
x2-10x+6=02x2+4
x-3=0
3x2-4x-4=0x2-7x=6
3x2+9x=x+6x2+6x-9=0
3x2-10x+7=02x2-10x=0
x2+8x+3=5x-3x(4x+3)=8+9x
x2+9x-1=03x2-4
x+4=0
4x2-2x-8=0x2-2x=10
3x2+10x=x+6x2-7x-2=0
4x2+10x+9=08x2-4x=0
x2-4x-1=2x-10x(4x-5)=4-2x
x2+6x-5=03x2+2
x+2=0
4x2+3x+1=0x2+8x=19
3x2-10x=x-10x2-8x-6=0
4x2+10x-3=04x2+7x=0
x2+7x-7=5x-7x(3x+5)=1+5x
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