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47.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47.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47
x2+4x+9=03x2-2
x+8=0
4x2+2x+1=0x2-10x=15
3x2+5x=x-7x2-8x-3=0
2x2+6x+2=06x2-8x=0
x2-10x-10=3x-8x(4x+2)=8-4x
x2-7x+5=04x2-2
x+5=0
3x2+3x+2=0x2-9x=10
4x2+3x=x+7x2+5x+8=0
3x2+5x+9=04x2+5x=0
x2-3x+3=2x+1x(3x-2)=1+6x
x2-3x+9=02x2-2
x-10=0
2x2+2x+6=0x2-10x=3
3x2-3x=x+10x2-10x+6=0
4x2-7x+10=09x2-8x=0
x2+8x+5=4x-4x(3x-2)=8+6x
x2+10x-3=02x2+2
x-9=0
3x2+3x+6=0x2-4x=15
4x2+4x=x+5x2-3x-3=0
4x2-5x+10=03x2+8x=0
x2-9x+4=8x-2x(2x-2)=8-8x
x2+8x+1=02x2+4
x+8=0
2x2+7x+7=0x2+5x=7
3x2+5x=x+2x2+6x-1=0
2x2+9x-7=03x2+3x=0
x2-3x+4=5x+3x(3x-2)=5+7x
x2+3x+8=04x2+3
x-2=0
3x2-9x+10=0x2-2x=5
3x2-2x=x+5x2-8x+7=0
3x2+2x-8=07x2-7x=0
x2+3x+7=5x+8x(4x+3)=3-4x
x2+4x+8=04x2-4
x-1=0
2x2+2x-4=0x2+8x=2
4x2+10x=x+6x2+8x-8=0
3x2+3x-6=07x2-2x=0
x2+10x-5=5x-7x(4x-1)=8+5x
x2-9x+8=04x2-3
x+9=0
3x2+2x+2=0x2-8x=9
4x2+7x=x+9x2+5x+7=0
3x2-9x-1=07x2-8x=0
x2-6x+10=9x+1x(2x-5)=1+3x
x2+8x-3=03x2+2
x+6=0
2x2-3x+1=0x2-2x=3
3x2-3x=x+5x2-10x-4=0
3x2-5x-10=04x2+8x=0
x2-6x+5=3x+4x(2x-1)=8+4x
x2-6x+5=02x2+3
x+1=0
4x2-2x+10=0x2+9x=7
3x2-10x=x+1x2-9x-9=0
3x2-6x+7=04x2+7x=0
x2-6x+3=9x+8x(4x-2)=6+4x
x2-10x-5=04x2-3
x-5=0
2x2-4x-7=0x2+3x=10
3x2+3x=x-6x2+10x+1=0
2x2-5x+6=09x2-3x=0
x2-2x-3=6x-1x(4x-3)=3+2x
x2-5x+6=04x2+2
x-6=0
2x2+9x-6=0x2+7x=18
3x2+9x=x-5x2-6x+3=0
2x2-6x+9=09x2-7x=0
x2+4x-3=4x+7x(2x+5)=2-4x
x2+3x-9=03x2-3
x+4=0
2x2+9x+8=0x2+2x=7
4x2+10x=x-9x2-8x-2=0
3x2-3x+4=07x2-4x=0
x2+7x-5=9x-9x(4x+5)=2+8x
x2-7x-8=03x2+3
x-2=0
2x2-10x-6=0x2-10x=5
4x2-7x=x+10x2+8x+6=0
3x2-7x+8=07x2-2x=0
x2+8x+7=9x+6x(4x-5)=3-6x
x2+4x-2=03x2-3
x+6=0
4x2-2x+9=0x2-7x=3
4x2+10x=x+2x2+4x-5=0
2x2-9x+8=07x2+9x=0
x2+2x-1=9x-4x(3x-4)=2+5x
x2-10x-2=02x2+3
x+4=0
2x2+8x-10=0x2+7x=20
3x2+6x=x+2x2-5x-3=0
3x2+6x+6=05x2-3x=0
x2-6x-9=8x+4x(4x+3)=7-6x
x2+7x-3=04x2-4
x-8=0
2x2-9x-6=0x2-5x=6
4x2+4x=x-6x2-6x-3=0
3x2+9x-5=06x2-10x=0
x2-9x-7=2x+7x(3x+3)=4-3x
x2+4x+9=02x2-2
x+8=0
2x2-8x+4=0x2+3x=12
3x2-7x=x-8x2+5x+5=0
2x2+3x+1=06x2-4x=0
x2-4x+3=6x-4x(2x+5)=3+8x
x2-7x+5=03x2+4
x+5=0
3x2-8x-10=0x2+6x=20
4x2-10x=x+3x2-3x+5=0
2x2-10x+1=03x2-7x=0
x2-6x+4=5x-4x(4x+5)=3-7x
x2-5x-3=02x2+4
x+1=0
3x2-10x-5=0x2-10x=1
2x2-5x=x+8x2+9x-10=0
4x2-3x+3=03x2+9x=0
x2+7x-1=2x+8x(4x-5)=5+6x
x2+8x-1=02x2-2
x-2=0
3x2-5x-4=0x2-2x=7
3x2+10x=x+9x2-9x-4=0
4x2+5x-7=03x2-9x=0
x2-7x-6=6x+4x(4x-5)=8+4x
x2+9x-8=03x2-2
x+2=0
2x2+10x-1=0x2+5x=20
4x2+6x=x+2x2-9x+6=0
2x2-3x-3=04x2-9x=0
x2-8x-4=3x+6x(3x-1)=5+9x
x2+5x-9=04x2-2
x+9=0
2x2-3x+2=0x2-5x=14
2x2-8x=x-2x2-4x-5=0
4x2-7x+3=04x2+4x=0
x2+7x+3=9x-7x(4x-1)=2+3x
x2-7x-3=04x2+4
x-1=0
4x2+3x+6=0x2+6x=3
2x2-4x=x+9x2+8x+9=0
2x2+2x+3=08x2-6x=0
x2+6x-2=8x-5x(3x-2)=5-8x
x2-3x-8=02x2-3
x-10=0
4x2+9x+4=0x2+2x=6
2x2-10x=x+2x2-3x+5=0
4x2+2x+5=04x2+6x=0
x2+6x+6=7x-1x(4x-2)=7-6x
x2+9x-8=04x2+3
x-7=0
2x2-6x+1=0x2-10x=14
4x2-10x=x+7x2+4x+10=0
4x2-3x-1=09x2+3x=0
x2+4x-6=2x+1x(4x-2)=1+8x
x2+6x-4=03x2+2
x+1=0
4x2+5x-7=0x2+7x=13
4x2+5x=x-8x2+10x-9=0
4x2+6x-5=04x2-7x=0
x2-8x-8=7x-9x(3x+2)=7+8x
x2+4x+7=04x2+2
x+2=0
2x2-9x+4=0x2+9x=4
4x2+8x=x-2x2-4x-2=0
2x2+2x+1=02x2-2x=0
x2-3x-3=5x-2x(4x+2)=9-7x
x2-7x-4=02x2-3
x-4=0
2x2-8x-6=0x2-7x=20
3x2-5x=x+8x2+9x-5=0
4x2-7x-7=09x2+4x=0
x2-8x-6=5x+6x(4x-4)=8+6x
x2-10x+6=02x2+2
x-4=0
3x2+5x+6=0x2-5x=9
3x2+4x=x+2x2-5x-5=0
4x2-3x+10=06x2+6x=0
x2+3x+2=8x-5x(4x-4)=2-7x
x2+9x+9=02x2-4
x-10=0
3x2+10x-10=0x2-6x=17
3x2+5x=x+9x2+5x-9=0
3x2-2x+7=04x2-2x=0
x2+9x-5=2x+7x(3x+5)=9-3x
x2-10x-4=04x2-4
x+1=0
4x2-9x-4=0x2-9x=1
2x2+3x=x-9x2-5x+10=0
4x2+9x-1=06x2-9x=0
x2+10x-1=6x-10x(2x+3)=8+4x
x2-3x+4=02x2+4
x-1=0
3x2+4x+10=0x2-3x=1
3x2-9x=x+2x2+4x+6=0
2x2+10x+10=04x2-7x=0
x2+9x+4=6x+10x(4x+5)=7+7x
x2-9x+10=04x2+3
x+5=0
2x2+10x+7=0x2-10x=8
4x2-2x=x+6x2-7x-6=0
4x2-8x-1=08x2+9x=0
x2+2x-9=9x+10x(3x+4)=2+3x
x2+5x+1=03x2+4
x+2=0
4x2-3x+2=0x2-9x=19
2x2+7x=x-7x2+2x-3=0
2x2+5x+8=09x2+2x=0
x2+3x-5=7x-4x(3x+3)=2-3x
x2+10x+10=04x2+4
x+10=0
2x2-2x+5=0x2+10x=8
3x2-3x=x-6x2-8x-8=0
4x2-2x+4=06x2-9x=0
x2-8x+2=7x-4x(4x-1)=3+8x
x2-6x+8=03x2-3
x-4=0
3x2+5x+8=0x2-10x=9
4x2-8x=x-6x2-8x+5=0
3x2+6x+9=05x2-3x=0
x2+8x+8=8x-3x(2x+2)=5-7x
x2+3x+7=04x2-3
x+10=0
3x2+5x-10=0x2+4x=7
4x2-5x=x+8x2+5x-8=0
2x2+7x-2=05x2-8x=0
x2+7x-7=3x+7x(4x-2)=7+5x
x2-9x+2=04x2-2
x+3=0
4x2-10x+6=0x2+6x=1
4x2-9x=x-3x2+3x-1=0
2x2+7x-3=02x2+2x=0
x2+10x+5=4x-5x(3x+1)=4-6x
x2+10x+7=04x2+3
x+8=0
2x2-4x-7=0x2+2x=12
4x2-2x=x+8x2-3x-1=0
3x2-10x-5=02x2+7x=0
x2+7x+10=9x-10x(4x+1)=2+7x
x2-9x-7=04x2-3
x-8=0
4x2-4x-5=0x2-3x=20
2x2+2x=x+2x2-4x-5=0
3x2-10x-10=09x2-4x=0
x2+9x-1=5x+1x(3x+2)=3+8x
x2+10x-5=02x2-4
x-10=0
4x2+8x-8=0x2+4x=17
3x2-8x=x+7x2+4x+3=0
3x2+7x+10=06x2+4x=0
x2-8x+9=7x-7x(3x-4)=5+9x
x2+8x+3=03x2+3
x-10=0
2x2+9x+10=0x2+4x=10
4x2-9x=x-5x2-10x+1=0
4x2-5x-1=09x2-10x=0
x2+2x-2=6x-8x(3x-1)=7+8x
x2-8x+1=04x2+3
x-5=0
3x2-6x+5=0x2-3x=13
2x2+5x=x-7x2-4x-7=0
3x2-9x+3=07x2-2x=0
x2+7x+10=5x+2x(4x+5)=6-9x
x2+10x+2=02x2+3
x+2=0
4x2-7x-5=0x2+4x=2
4x2+9x=x+10x2-3x+4=0
4x2+6x-8=04x2-4x=0
x2-3x-7=4x+7x(4x-4)=1+3x
x2+10x-5=04x2-2
x-4=0
3x2-5x+9=0x2-2x=2
4x2-9x=x-9x2+9x+7=0
2x2-5x-6=06x2+4x=0
x2+6x-6=5x-2x(4x-1)=7-9x
x2-8x+1=02x2-3
x-2=0
4x2+4x+9=0x2+9x=11
4x2-4x=x-4x2+3x-9=0
3x2-7x-8=02x2+4x=0
x2-2x+4=9x-5x(4x+3)=2+4x
x2+4x+6=03x2-4
x-6=0
3x2+2x-8=0x2-8x=5
4x2-3x=x+7x2-10x+9=0
3x2-9x-2=06x2-9x=0
x2-5x+1=4x+3x(4x-4)=9+7x
x2+7x-6=02x2+3
x+7=0
3x2-7x-3=0x2-3x=10
4x2+6x=x-6x2+4x-3=0
3x2+4x+3=08x2+10x=0
x2+9x+1=7x-8x(2x-2)=9-5x
x2-6x+2=03x2+2
x+5=0
2x2+7x-5=0x2-7x=5
2x2-4x=x-3x2+3x+10=0
4x2-9x-1=07x2+7x=0
x2-10x-10=9x-3x(4x+1)=8+3x
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