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40.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40.docx

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40

x2-9x-6=02x2+4

x+7=0

4x2+3x-5=0x2+9x=2

4x2-9x=x+4x2-7x-6=0

4x2-8x+10=07x2+8x=0

x2-9x+9=2x+8x(2x-4)=3-2x

x2-9x+9=03x2+3

x-3=0

2x2-10x+8=0x2-3x=19

4x2+2x=x+8x2+6x+9=0

4x2-4x-7=02x2-10x=0

x2+9x+6=6x-9x(2x-1)=4-7x

x2+5x-1=04x2-3

x-5=0

2x2+8x+8=0x2-3x=16

3x2-3x=x+1x2+6x-10=0

3x2-8x-6=08x2-4x=0

x2+9x+7=7x+1x(3x+5)=5+8x

x2+5x-3=02x2+4

x+7=0

4x2-9x+3=0x2+8x=16

2x2-6x=x+9x2-8x-2=0

3x2+8x+10=08x2-6x=0

x2-7x-10=3x-5x(2x-4)=9+4x

x2+2x+8=03x2-4

x-9=0

3x2-2x+5=0x2+2x=7

3x2+3x=x-8x2+10x-9=0

2x2-4x-6=06x2+5x=0

x2+6x+3=2x-3x(4x+1)=1-3x

x2+9x+9=04x2-4

x-5=0

2x2-8x-5=0x2+7x=5

3x2+9x=x+6x2-3x-3=0

2x2+10x-7=05x2+6x=0

x2+6x+3=9x-1x(3x+2)=5+3x

x2-2x+6=04x2-3

x+3=0

2x2-10x-6=0x2+3x=11

3x2+5x=x+2x2-2x-5=0

2x2+8x+8=03x2-4x=0

x2+3x-9=5x-7x(2x+2)=6-2x

x2+3x-2=02x2-3

x+3=0

4x2-7x+9=0x2+10x=4

3x2+2x=x-6x2-5x-7=0

4x2+6x+5=02x2-4x=0

x2-4x+10=3x+5x(3x+1)=8-5x

x2+9x-9=03x2+2

x-1=0

2x2+5x+1=0x2-4x=8

3x2+7x=x-4x2+9x-4=0

2x2+9x+2=07x2-5x=0

x2+9x-9=9x-7x(2x-2)=5-8x

x2+9x+3=03x2+3

x+6=0

2x2-7x+1=0x2-7x=8

3x2-7x=x-9x2+10x-4=0

2x2-9x-10=06x2+9x=0

x2-6x+3=4x+6x(2x+5)=4-2x

x2-5x-10=03x2-4

x-7=0

4x2+9x-1=0x2-2x=17

2x2-7x=x+10x2-2x+5=0

4x2+9x+3=04x2-3x=0

x2-10x-4=2x+1x(2x+4)=4-4x

x2+6x+9=02x2+3

x+8=0

3x2+4x-2=0x2+2x=10

4x2+2x=x-5x2-8x-10=0

3x2-3x-1=05x2-7x=0

x2+10x+3=5x+2x(2x+4)=2-9x

x2+5x-5=03x2+3

x-4=0

2x2+2x-7=0x2+3x=1

3x2+10x=x-1x2-10x+1=0

2x2+10x-3=03x2-5x=0

x2+2x-2=9x-3x(4x-2)=9-4x

x2-3x-6=03x2+4

x+7=0

3x2+8x-10=0x2-4x=10

4x2-7x=x-1x2-8x-5=0

2x2-7x-4=02x2+2x=0

x2-5x+2=9x+2x(4x+5)=6+2x

x2-9x-5=04x2-3

x+5=0

3x2-3x-3=0x2+6x=8

2x2+6x=x-8x2+6x-5=0

4x2-10x-8=04x2+3x=0

x2-6x-1=6x-2x(4x-1)=6+9x

x2-7x-3=02x2-4

x-6=0

4x2+10x-10=0x2-2x=7

2x2+9x=x-3x2+3x-7=0

4x2-6x+7=09x2-10x=0

x2+5x-10=4x+5x(2x-5)=6+5x

x2+5x-1=03x2-2

x+3=0

4x2+4x+2=0x2+6x=15

2x2+5x=x+9x2+3x+5=0

2x2+8x-4=02x2-4x=0

x2-9x-3=5x+1x(3x+5)=1-3x

x2-7x-4=03x2+2

x-5=0

2x2+2x-4=0x2-3x=2

4x2+3x=x-9x2+6x-9=0

3x2+7x+8=06x2-2x=0

x2-8x+10=3x-2x(2x-5)=2+2x

x2+8x+4=04x2-3

x-8=0

4x2-2x+5=0x2-6x=10

3x2-3x=x+6x2-2x-6=0

2x2-7x+8=08x2-10x=0

x2-6x-2=7x-9x(3x+1)=5-9x

x2-2x+7=04x2+4

x+5=0

4x2-7x+6=0x2-3x=15

2x2-4x=x+2x2-9x-1=0

3x2-2x-7=06x2-8x=0

x2-8x+3=6x-8x(3x+5)=6-2x

x2-8x-5=02x2+3

x+6=0

3x2+6x-1=0x2+6x=15

4x2+2x=x-7x2+8x+1=0

4x2-3x+4=05x2-10x=0

x2+7x+1=3x+8x(2x-4)=5+5x

x2-2x+5=04x2-3

x-3=0

2x2+7x+6=0x2-5x=5

3x2+6x=x+5x2-10x+1=0

2x2+7x+2=06x2+8x=0

x2+9x-3=7x-10x(4x-3)=4+8x

x2-2x-2=03x2+4

x+2=0

2x2-10x-4=0x2+6x=10

2x2+3x=x-7x2+10x+8=0

4x2+6x-1=06x2+3x=0

x2+8x+7=4x+10x(2x-2)=6-9x

x2-7x+8=04x2-4

x+6=0

2x2-5x-2=0x2-4x=5

4x2+5x=x+4x2+4x-1=0

4x2-10x+10=06x2-9x=0

x2+6x-5=4x-6x(4x+2)=6-6x

x2+6x-5=02x2+2

x+8=0

4x2+9x+7=0x2-7x=7

4x2+3x=x+8x2+7x+4=0

3x2-5x-3=07x2+8x=0

x2+7x+1=3x-4x(3x+1)=7+7x

x2-3x+5=02x2-4

x+6=0

4x2-5x+7=0x2-6x=20

4x2+5x=x-9x2+2x+5=0

2x2+6x-4=04x2+9x=0

x2-10x+3=2x-10x(3x-4)=3-6x

x2+4x-4=04x2+4

x+4=0

2x2+4x+3=0x2+5x=5

4x2-10x=x+5x2-10x+9=0

4x2-8x-4=02x2-3x=0

x2+5x+6=4x+2x(3x+1)=3+7x

x2+8x-10=04x2-2

x-1=0

3x2-10x+9=0x2+7x=7

2x2-4x=x+6x2-2x+7=0

2x2+10x+2=05x2-4x=0

x2+4x-9=7x+10x(2x+4)=7+8x

x2+2x-4=03x2+2

x-1=0

2x2-8x+10=0x2-5x=20

3x2+4x=x+1x2-9x+8=0

4x2-7x+2=07x2+7x=0

x2+5x+10=6x+2x(4x-1)=2-3x

x2-3x-10=02x2-2

x-8=0

3x2-2x-2=0x2+10x=12

4x2+6x=x+10x2-8x-2=0

4x2-8x-5=08x2-2x=0

x2-7x-8=5x+1x(2x+2)=7+2x

x2+6x-2=03x2-4

x+8=0

4x2+6x+10=0x2-4x=9

4x2-6x=x+3x2-9x-8=0

4x2+10x+2=05x2+10x=0

x2+7x-6=8x+2x(3x+1)=1+6x

x2+2x+10=04x2-4

x+10=0

3x2-7x+10=0x2+5x=11

2x2+9x=x-7x2-10x-8=0

4x2+9x+2=06x2+4x=0

x2-3x+5=2x-9x(3x-1)=1-6x

x2-6x+3=02x2-4

x-2=0

3x2-2x-2=0x2+8x=10

4x2-6x=x-9x2-5x+10=0

3x2+2x-2=03x2+7x=0

x2+4x+5=8x-9x(4x-3)=2-8x

x2+3x-1=04x2-3

x+8=0

4x2+2x-6=0x2+6x=8

3x2+5x=x-1x2+4x+5=0

2x2+5x+5=05x2-9x=0

x2-6x-9=8x+10x(2x+2)=8-8x

x2+9x+4=03x2+2

x+10=0

2x2-9x-9=0x2+5x=16

2x2-4x=x-1x2-4x-2=0

4x2+8x+6=02x2-2x=0

x2-6x+4=5x-4x(4x-2)=7+2x

x2+2x-6=03x2-4

x-6=0

2x2+7x-6=0x2+3x=5

2x2+6x=x+4x2+6x-7=0

2x2+2x+6=02x2+6x=0

x2+2x-9=9x+10x(3x-2)=3+7x

x2+2x-9=04x2+2

x+1=0

2x2-10x+9=0x2-9x=20

3x2-9x=x+8x2-7x-1=0

2x2-7x-2=03x2-4x=0

x2+3x+3=3x+9x(3x-5)=9-2x

x2-5x+2=04x2-3

x-3=0

4x2-4x+2=0x2-9x=19

2x2-5x=x+8x2+6x-1=0

3x2-6x-3=05x2-2x=0

x2+3x+6=7x-9x(4x-2)=6+7x

x2-2x+8=04x2-3

x-1=0

2x2+10x+3=0x2-6x=6

3x2+5x=x+7x2+10x-10=0

4x2+9x-8=03x2+2x=0

x2-9x-9=9x+3x(3x-3)=7-6x

x2+8x+7=03x2+2

x-3=0

2x2-5x+6=0x2+9x=19

3x2-10x=x+10x2-8x-5=0

2x2+3x+1=02x2-10x=0

x2+8x+6=9x+9x(2x+2)=8+5x

x2+10x-1=02x2+2

x-2=0

2x2-4x-10=0x2+2x=1

4x2-10x=x+7x2-8x-3=0

2x2-9x+7=08x2+8x=0

x2+4x+1=8x-7x(3x-1)=6+2x

x2+2x-10=03x2-4

x+6=0

2x2-8x-2=0x2-2x=11

4x2+7x=x-4x2+6x+5=0

2x2-3x+10=07x2-6x=0

x2-6x+1=2x+9x(2x+2)=8-9x

x2+7x+5=03x2+3

x+5=0

3x2-10x+8=0x2+10x=18

4x2+5x=x+3x2-8x+9=0

2x2+3x+3=05x2+10x=0

x2-10x-9=9x-7x(3x+2)=4+2x

x2+8x+9=02x2+2

x+8=0

2x2-4x+5=0x2-8x=15

3x2-8x=x+8x2-5x+10=0

4x2-6x-7=02x2+3x=0

x2+2x+3=9x-9x(4x-4)=9+5x

x2+10x+2=04x2+2

x+8=0

4x2-2x-1=0x2-6x=4

2x2+8x=x-2x2+2x-9=0

4x2+10x-10=08x2+7x=0

x2+5x-6=9x+10x(2x-2)=9+4x

x2-4x+1=04x2-4

x+3=0

3x2-6x-1=0x2-3x=9

4x2-8x=x+8x2-2x-3=0

4x2-2x+2=08x2-10x=0

x2-7x-6=3x-7x(2x-3)=1+8x

x2+3x-6=02x2-4

x-5=0

3x2-6x-7=0x2-3x=19

3x2-3x=x-2x2+2x+1=0

3x2+7x-3=09x2-8x=0

x2-7x+4=9x+10x(2x-3)=5-2x

x2-5x+6=04x2-2

x-4=0

2x2-3x-4=0x2+5x=8

4x2+6x=x+2x2-8x+5=0

2x2-8x-2=04x2-9x=0

x2+3x-2=5x-3x(3x+1)=8-4x

x2+4x+1=02x2+4

x-7=0

4x2+9x-1=0x2-6x=13

2x2-8x=x+2x2+7x-4=0

4x2-5x-3=04x2-3x=0

x2+4x-7=6x+1x(3x-3)=4+8x

x2-6x-1=03x2+2

x-8=0

3x2+10x+5=0x2+10x=5

4x2-9x=x-6x2+8x+1=0

3x2+3x+10=02x2-10x=0

x2-5x+5=9x-4x(4x-2)=7-5x

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