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26.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26
x2-9x+4=03x2+4
x+8=0
4x2-3x+10=0x2+10x=7
4x2+8x=x+9x2+2x-5=0
2x2-8x+4=04x2+2x=0
x2-5x-5=8x-3x(3x-2)=2+7x
x2+7x-5=03x2-3
x+1=0
2x2+5x-4=0x2-7x=16
2x2+8x=x-8x2-9x-6=0
3x2+5x+9=02x2+8x=0
x2+2x-8=9x-3x(4x+3)=5-4x
x2+2x+5=04x2-4
x-2=0
2x2-7x+6=0x2+6x=1
2x2-7x=x+4x2+6x-7=0
2x2-5x+6=02x2-5x=0
x2+8x+5=3x+6x(2x+5)=2+7x
x2+5x-2=03x2-3
x-2=0
3x2-3x+2=0x2+3x=8
2x2-4x=x-10x2+3x-6=0
4x2+7x-1=03x2+3x=0
x2-5x-7=2x-1x(2x+5)=3-2x
x2+7x-8=04x2-2
x-8=0
3x2-4x-8=0x2+8x=20
4x2+4x=x+5x2-9x-8=0
2x2+8x-9=02x2+4x=0
x2+6x-3=7x+1x(3x+4)=3-3x
x2-6x-6=02x2-4
x+4=0
2x2+2x-5=0x2-8x=9
4x2+2x=x-10x2+2x-1=0
2x2+5x-2=03x2+3x=0
x2-2x-7=8x-4x(3x+5)=8-3x
x2-4x+7=02x2+3
x-10=0
2x2+6x+1=0x2+6x=7
3x2-3x=x-4x2+9x-9=0
3x2+6x-2=02x2-8x=0
x2+4x+3=2x+6x(3x-4)=2-7x
x2+4x+10=04x2-3
x+10=0
2x2+2x+6=0x2-9x=1
2x2-9x=x-9x2+7x+2=0
2x2+2x+9=07x2+8x=0
x2+10x-9=4x-1x(2x-1)=4-4x
x2+8x+5=03x2+3
x-5=0
2x2+10x+2=0x2+9x=18
3x2+6x=x+10x2-6x-8=0
2x2-6x-10=02x2-7x=0
x2+7x+1=7x-8x(4x-2)=9-5x
x2-5x+9=02x2+4
x-8=0
3x2+2x-3=0x2+5x=20
4x2+2x=x+8x2-10x+8=0
3x2+3x+1=04x2+9x=0
x2+2x+9=4x-4x(4x-1)=2+4x
x2-5x+3=03x2+3
x-2=0
4x2-4x-6=0x2+10x=9
4x2-2x=x-8x2-8x+6=0
3x2+2x+4=08x2+10x=0
x2+7x+9=3x-3x(4x-3)=6-8x
x2+10x-4=04x2-3
x+2=0
4x2+7x+8=0x2+6x=17
3x2+6x=x-9x2+6x-4=0
4x2+8x-10=02x2-5x=0
x2+6x-5=8x-7x(2x+5)=3+3x
x2+2x-8=02x2-4
x-5=0
4x2+7x-7=0x2+5x=16
2x2+4x=x+5x2+4x-7=0
3x2+3x+1=05x2-9x=0
x2-4x-2=7x-7x(4x+3)=5-2x
x2+9x+2=02x2+3
x+9=0
2x2+4x+7=0x2+9x=5
4x2+2x=x+4x2-6x+5=0
4x2+5x+5=08x2-9x=0
x2+7x-4=3x+9x(2x+2)=4-4x
x2-4x-3=03x2+3
x-8=0
4x2+5x-5=0x2+5x=2
4x2-8x=x+4x2-8x+1=0
4x2-6x+2=06x2-3x=0
x2+3x-10=3x+1x(4x-3)=6-3x
x2+5x-1=03x2+2
x-6=0
3x2+9x+2=0x2+6x=9
3x2-4x=x-10x2+10x-8=0
3x2+4x-7=03x2-4x=0
x2-6x+8=4x-3x(3x+1)=1-3x
x2+4x+4=03x2-4
x-9=0
2x2+10x+6=0x2-2x=1
3x2-2x=x-5x2-10x-10=0
2x2+4x-6=07x2-2x=0
x2-8x-8=4x-2x(3x+1)=5-8x
x2+7x+5=04x2-3
x+7=0
4x2-5x+6=0x2-9x=12
2x2+10x=x+2x2-10x-2=0
3x2-9x+5=07x2+9x=0
x2+6x-4=5x+9x(4x+5)=1+2x
x2-3x+2=04x2+3
x+6=0
4x2-7x+4=0x2+5x=12
2x2-7x=x+3x2+2x+9=0
4x2+8x-5=06x2+2x=0
x2-5x-6=4x+3x(4x-2)=7-4x
x2+2x+5=02x2+3
x-9=0
2x2-9x-7=0x2+8x=1
3x2+10x=x-6x2-2x+6=0
3x2+2x-1=06x2+4x=0
x2+8x+7=6x-4x(3x-5)=2-6x
x2-7x-7=02x2+3
x+2=0
3x2+3x+9=0x2-3x=16
3x2-3x=x+7x2+2x+6=0
2x2-3x-3=06x2-9x=0
x2+10x-10=7x+3x(2x-2)=3+6x
x2-3x-8=03x2+2
x-1=0
2x2+9x+5=0x2+9x=4
3x2+9x=x-7x2-8x+10=0
4x2+4x+7=05x2-10x=0
x2+4x+3=6x-9x(4x-4)=8+9x
x2-9x+5=04x2-4
x+6=0
4x2+4x+5=0x2-6x=2
4x2+7x=x+2x2+2x+2=0
2x2+10x+8=02x2+2x=0
x2-2x-8=6x-9x(4x-5)=5+9x
x2+10x+6=03x2+3
x-3=0
3x2-3x-1=0x2-3x=10
4x2+2x=x-2x2-7x+9=0
2x2+9x+5=02x2+10x=0
x2-7x-2=4x-1x(3x-4)=6+4x
x2+3x-3=02x2-4
x-7=0
4x2-5x-9=0x2-2x=10
2x2+2x=x-9x2+7x-10=0
4x2+5x+7=09x2-10x=0
x2-5x-6=9x-8x(2x-4)=9-6x
x2-8x+9=02x2+2
x-5=0
3x2+8x-6=0x2+2x=4
2x2+3x=x+4x2+9x+4=0
2x2-6x+8=04x2+6x=0
x2+10x-5=4x+3x(4x+3)=2-3x
x2-3x-2=04x2-3
x-10=0
3x2-7x-6=0x2-2x=5
4x2-10x=x-4x2-4x-1=0
4x2+6x+5=07x2+3x=0
x2-8x+7=4x-2x(3x+5)=9+5x
x2-4x-10=02x2+3
x-9=0
4x2-2x-10=0x2+3x=1
2x2+6x=x+1x2-4x-10=0
4x2-7x+5=08x2+3x=0
x2+2x-1=6x-10x(2x-4)=9-4x
x2-5x-1=04x2+3
x+8=0
3x2-8x-6=0x2-9x=6
3x2+7x=x+5x2-4x+9=0
4x2-3x-7=05x2-3x=0
x2-8x-9=4x+10x(4x+5)=7-7x
x2+3x+6=04x2-3
x+8=0
3x2-9x-6=0x2+2x=15
4x2+7x=x+4x2+4x-1=0
3x2-6x+1=07x2-3x=0
x2-5x+10=8x-3x(4x+4)=4+2x
x2-6x+5=03x2-3
x+8=0
2x2+10x-6=0x2-3x=2
4x2+9x=x+7x2-5x-7=0
2x2+7x+2=03x2-7x=0
x2-3x-5=2x-8x(3x-2)=3+9x
x2-4x+9=03x2-4
x-3=0
4x2-10x-8=0x2-7x=12
4x2-10x=x-9x2-3x-2=0
3x2-7x-10=03x2-10x=0
x2-2x+5=4x+9x(2x-5)=4+2x
x2-2x-5=02x2+3
x-3=0
3x2+9x-3=0x2+9x=13
4x2+6x=x-10x2-6x-10=0
2x2-3x+10=06x2-5x=0
x2-7x+6=5x+4x(2x-1)=5-7x
x2-10x-2=02x2-4
x+3=0
2x2-9x-8=0x2-4x=19
3x2+5x=x-2x2+5x-8=0
2x2-4x+10=04x2+4x=0
x2+3x-2=2x-8x(4x-1)=2-9x
x2-2x+10=02x2-3
x-10=0
2x2+5x-3=0x2-9x=4
4x2-5x=x+1x2-5x+1=0
4x2+8x+10=04x2-7x=0
x2-9x-2=4x-9x(3x+1)=2-7x
x2+3x-1=02x2+4
x-6=0
2x2+6x-6=0x2-4x=19
2x2+3x=x-1x2-10x+5=0
3x2+6x+7=02x2-7x=0
x2+2x-9=2x-2x(4x+3)=5-8x
x2+8x-8=04x2+3
x-1=0
2x2-3x+3=0x2-4x=17
3x2-4x=x-6x2-5x+3=0
2x2-3x-7=03x2-4x=0
x2-8x+9=6x+2x(4x+3)=7-4x
x2+8x+3=04x2+4
x+4=0
2x2+5x-6=0x2-10x=3
4x2+2x=x-2x2-8x-10=0
3x2+8x-1=06x2-8x=0
x2-6x+1=5x+1x(3x+1)=9-8x
x2-9x+4=02x2+3
x-4=0
4x2+10x+1=0x2-5x=7
2x2+8x=x+9x2+10x-2=0
4x2-5x-6=06x2+4x=0
x2+2x-5=6x-10x(2x+5)=1-4x
x2+4x+9=04x2+2
x+3=0
3x2+5x-4=0x2-6x=10
4x2+6x=x-2x2+10x+9=0
4x2-5x-4=09x2-9x=0
x2+5x-1=2x+6x(2x-3)=3-2x
x2+10x-7=03x2-3
x+2=0
2x2-7x-9=0x2-9x=7
4x2-10x=x+3x2+7x+10=0
3x2-9x-5=07x2+6x=0
x2-6x-7=6x+6x(3x-2)=9+3x
x2+7x+4=02x2-3
x-5=0
3x2+4x+8=0x2-9x=6
3x2-8x=x-1x2-8x-6=0
2x2-2x+4=08x2+8x=0
x2-10x-7=8x+1x(2x-3)=9-9x
x2+9x+7=04x2+3
x-3=0
2x2+2x+1=0x2+4x=10
3x2+4x=x+6x2+6x-9=0
2x2-4x+8=08x2+2x=0
x2-3x-3=9x-8x(2x+3)=1-3x
x2+4x+2=03x2-2
x-3=0
4x2+8x-2=0x2+9x=3
2x2+5x=x+10x2+3x-8=0
3x2+3x-7=04x2-5x=0
x2-6x-3=2x-6x(2x+4)=1-3x
x2+4x-6=02x2+4
x-1=0
2x2-6x+1=0x2-3x=18
3x2+10x=x-9x2-6x-6=0
3x2-5x+6=04x2+2x=0
x2-6x-4=7x-5x(2x+2)=2+3x
x2-9x-4=03x2-4
x-8=0
2x2-10x-8=0x2-7x=19
4x2+6x=x+3x2-3x-4=0
4x2+5x-9=06x2-8x=0
x2+4x+7=4x+3x(4x-4)=2+3x
x2-9x+8=04x2-2
x-2=0
4x2+4x+1=0x2-2x=8
3x2+10x=x+4x2+8x-2=0
4x2-10x-6=03x2+8x=0
x2-10x-9=2x-6x(2x+1)=5-2x
x2-3x+8=04x2+3
x+7=0
2x2+8x+5=0x2+6x=7
2x2-6x=x+2x2+3x+7=0
4x2-2x-10=03x2+10x=0
x2+5x-6=3x-2x(3x-5)=3+7x
x2+9x-6=03x2+4
x-4=0
4x2+9x-6=0x2-7x=13
3x2+4x=x-8x2+8x-1=0
3x2+6x+6=06x2+2x=0
x2+4x-2=6x+8x(3x-2)=9-6x
x2-8x+2=03x2+2
x-3=0
3x2+3x-3=0x2-2x=6
4x2-4x=x-9x2-3x-7=0
4x2-5x+4=06x2+4x=0
x2-6x+9=2x+1x(2x-3)=3-5x