一元二次方程专项练习23

1、x2 + 4x 4=06x2+ 2(3x 4)=02y2+ 3y 15=0x? 8x + 6=03x2+ 5(2x + 5)=03y2 6y 7=0x2 + 6x + 7=05x2+ 4(3x 1)=02y2 8y 11=0x2 + 8x 7=05x2+ 2(4x + 3)=03y2 2y + 11=0x2+ 8x1=04x2 4(2x + 4)=04y2 5y + 14=0x2 3x + 19=04x2 5(4x 1)=02y2 7y + 8=0x2 5x + 17=06x2 5(3x 1)=03y2 2y + 9=0x2 5x + 16=05x2 4(3x + 5)=04y2 3y 15=

2、0X 2x 18=04x2+ 3(3x + 2)=03y2 5y 7=0x2 6x + 10=05x2+ 5(3x 5)=05y2+ 9y + 11=0x2 + 10x + 20=05x2+ 2(4x + 4)=03y2+ 6y + 14=0x2 + 10x 12=04x2+ 3(4x + 4)=03y2+ 5y 17=0x2 - 5x + 17=05x2 5(3x + 3)=04y2 10y + 13=0x2 + 6x 16=02x2 2(2x + 5)=03y2+ 2y 9=0x2 2x + 5=04x2 3(2x + 2)=02y2 5y 2=0x2 5x 16=06x2 4(4x +

3、4)=03y2+ 4y + 15=0x2 9x + 4=05x2 4(4x 4)=02y2+ 9y 15=0x2 + 9x 14=05x2+ 5(3x + 3)=02y2 6y 17=0x2 7x + 12=03x2 3(4x + 2)=02y2 8y 18=0x2 + 3x + 6=05x2+ 2(4x + 4)=03y2 + 8y 1=0x2 + 10x + 9=02x2+ 4(2x + 3)=05y2+ 6y 3=0x? 6x 1=04x2 4(2x 1)=04y2 5y + 19=0x2 8x + 7=02x2+ 4(4x 4)=03y2 6y + 1=0x2 3x 19=02x2 2

4、(4x + 2)=02y2 4y + 18=0X 6x + 20=06x2 2(2x 1)=02y2 8y 8=0x2 + 8x - 17=03x2+ 4(2x + 2)=02y2 8y 8=0x2 6x + 17=03x2 2(2x + 4)=04y2 10y 7=0x2 + 5x 3=06x2+ 5(3x 4)=02y2+ 5y 1=0x2 + 3x 8=06x2 5(2x + 2)=02y2+ 7y 8=0x? 8x 12=06x2+ 4(2x + 4)=03y2 8y + 2=0x2 2x + 10=06x2+ 4(4x 1)=04y2+ 4y 1=0x2 9x 7=02x2+ 3(2

5、x 4)=03y2+ 3y + 13=0X 9x 15=04x2 5(4x + 4)=03y2 6y 18=0x2 + 4x - 17=02x2 5(4x 5)=04y2 7y 2=0x2 4x 17=04x2+ 3(3x + 1)=03y2 2y + 7=0x2 5x 17=02x2+ 4(4x + 4)=04y2+ 7y 4=0x2 + 7x + 仁02x2+ 4(4x + 5)=03y2 6y 5=0x2 + 9x + 4=02x2 3(2x 4)=02y2+ 5y + 仁0x2 8x 20=03x2+ 4(3x + 2)=04y2+ 9y + 5=0x2 + 7x 10=06x2+ 2

6、(2x + 2)=03y2 2y + 9=0X 一 2x 一 9=02x2+ 2(4x 3)=03y2+ 10y 19=0x2 + 10x - 20=02x2 4(4x 4)=04y2 6y 20=0x2 6x 6=05x2+ 4(2x + 5)=04y2 4y 19=0x2 + 4x 13=05x2 5(2x 1)=03y2 4y 17=0x2 + 9x + 3=06x2 - 5(2x - 2)=02y2+ 2y - 12=0x2 - 7x + 15=05x2+ 4(3x - 5)=04y2+ 8y 12=0x2 + 6x 17=03x2+ 2(4x + 3)=04y2- 6y + 2=0x

7、2 + 9x 7=03x2+ 2(3x - 4)=04y2+ 10y - 12=0x2 + 10x + 2=02x2+ 4(4x + 3)=04y2+ 2y + 12=0x? 2x 一 9=03x2 3(4x + 4)=02y2 6y 2=0x2 + 8x+12=03x2 3(3x 5)=02y2 5y + 11=0x2 + 9x 3=06x2+ 2(2x + 5)=02y2 5y + 7=0x2 + 9x - 13=06x2- 2(4x 1)=03y2 5y + 16=0x2 + 4x + 17=02x2+ 5(3x 1)=05y2 4y 9=0x2 - 10x - 10=06x2+ 2(4

8、x + 4)=04y2 3y 20=0x2 9x + 17=02x2 2(4x 4)=02y2+ 9y 15=0x2 4x + 12=03x2 5(2x 5)=05y2 8y 12=0x2 + 4x 15=06x2+ 4(2x 4)=02y2 4y + 1=0x2 + 6x 14=03x2+ 2(2x 3)=05y2+ 9y 11=0x2 9x 11=02x2+ 2(2x + 1)=04y2 10y 15=0x2 + 9x 7=05x2 5(2x 2)=04y2+ 3y 5=0x2 + 10x 5=02x2+ 3(4x 3)=04y2 5y + 9=0x2 5x 13=04x2 4(4x 5)

9、=02y2 7y 15=0x2 + 2x+15=03x2 3(3x + 2)=02y2+ 9y + 3=0x2 - 10x + 11=06x2+ 4(3x 1)=04y2 5y 15=0x2 - 7x + 3=03x2+ 4(3x 4)=02y2+ 4y + 18=0x2 2x 2=04x2+ 3(3x + 5)=04y2 2y + 15=0x2 + 5x 17=06x2 3(3x + 1)=04y2 2y + 19=0x2 - 10x - 12=05x2+ 3(3x 5)=05y2+ 7y 14=0x2 + 3x - 16=02x2+ 5(4x + 2)=03y2+ 9y 6=0x2 7x

10、13=02x2+ 3(2x 5)=02y2+ 2y 7=0x2 7x 13=05x2+ 2(3x + 1)=02y2+ 10y 6=0X 5x 18=04x2+ 5(2x + 5)=05y2+ 10y 15=0x? 7x 6=02x2 4(4x 4)=04y2+ 7y + 14=0x2 6x + 19=03x2+ 4(3x 4)=04y2 4y + 15=0x2 + 3x 16=02x2 3(3x + 3)=02y2 7y 12=0x2 + 4x 17=02x2 5(2x 3)=03y2+ 3y + 2=0x? 8x 2=05x2 3(4x 3)=05y2 8y + 6=0x2 7x + 13=05x2+ 5(2x 5)=02y2 5y + 12=0x2 + 7x + 16=06x2 3(4x