一元二次方程专项练习 85.docx
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一元二次方程专项练习85
x2-7x-12=03x2+2(3x-5)=04y2+5y-5=0
x2+8x-14=05x2-4(3x-5)=02y2+2y+4=0
x2+8x-15=03x2+3(3x+2)=03y2+10y+9=0
x2+10x-12=02x2+2(4x+2)=03y2-7y+16=0
x2-5x+5=04x2-3(2x+2)=04y2-5y+5=0
x2+8x+8=03x2-3(4x+4)=03y2-5y+3=0
x2-8x+13=03x2+5(4x+3)=02y2-3y+2=0
x2+2x+12=05x2+5(4x-1)=02y2+5y+16=0
x2-10x-9=04x2-2(4x+1)=02y2-2y+15=0
x2+4x-6=05x2+2(4x-3)=02y2+9y-20=0
x2-4x+3=05x2-3(2x+5)=03y2+2y-12=0
x2-10x+18=04x2-4(4x-5)=05y2+10y-18=0
x2-6x-7=05x2+3(4x+2)=04y2+7y+3=0
x2+5x-12=03x2+2(2x+2)=04y2-2y-2=0
x2+8x+4=04x2-2(3x-4)=02y2+6y+8=0
x2+6x-12=02x2+5(2x-1)=04y2-10y-4=0
x2+2x+15=05x2-4(2x+5)=05y2+10y+20=0
x2-5x+2=02x2-3(4x-2)=05y2-6y-5=0
x2+10x-16=02x2-2(2x+4)=03y2-7y-2=0
x2-3x-16=02x2-3(3x+3)=05y2-9y-1=0
x2-5x+17=02x2+5(2x-4)=03y2-7y+13=0
x2+8x-2=05x2-4(4x+3)=05y2-2y-17=0
x2+9x-10=04x2-5(3x-3)=05y2-10y-4=0
x2+4x-6=03x2+3(4x-5)=03y2-9y+14=0
x2+10x+10=02x2+5(4x-1)=02y2-5y-20=0
x2+10x+1=06x2-5(2x+1)=05y2+10y+19=0
x2-8x-1=03x2-2(2x+4)=02y2-10y-7=0
x2-4x-18=04x2-3(4x-1)=04y2-8y-4=0
x2+7x-17=06x2+3(4x+5)=02y2+9y-13=0
x2+5x+6=06x2-4(3x+4)=03y2+7y+1=0
x2-5x+5=03x2-5(4x+3)=03y2+7y+16=0
x2-6x-20=06x2+2(4x-1)=05y2-3y+7=0
x2+7x-16=06x2-2(4x+2)=04y2+4y-10=0
x2-5x+8=05x2-4(3x-5)=04y2+5y-16=0
x2+7x-7=04x2-2(4x+1)=05y2+8y+6=0
x2+7x-1=02x2+4(3x-1)=02y2-5y+2=0
x2+5x-2=02x2+5(2x-1)=03y2+6y+15=0
x2-4x+14=06x2-4(2x-4)=03y2-2y+16=0
x2-4x+12=02x2+3(3x+4)=04y2-9y+18=0
x2-9x+9=06x2+4(2x+1)=05y2+6y+18=0
x2-8x+6=03x2+4(2x-1)=05y2-5y+7=0
x2+6x+9=02x2+2(3x+2)=03y2-10y+5=0
x2-4x+20=04x2+3(4x-1)=02y2+10y+9=0
x2+7x+15=04x2-4(2x+1)=05y2+9y-13=0
x2+2x+13=04x2+3(4x-1)=02y2+2y-17=0
x2-5x+1=06x2+2(2x+4)=03y2-9y-9=0
x2-3x-20=03x2+2(2x+2)=03y2+8y-5=0
x2+9x+8=04x2+4(3x-2)=05y2+3y-11=0
x2-3x+9=03x2+2(3x-2)=05y2+7y-9=0
x2+7x+1=04x2-2(4x-4)=04y2+7y-8=0
x2-7x+18=03x2+4(4x+2)=05y2+9y-16=0
x2-5x-7=03x2-2(4x-1)=03y2-4y-20=0
x2+3x-16=05x2+4(2x-5)=04y2+5y+7=0
x2+2x+12=03x2+3(2x+5)=05y2-6y+2=0
x2-3x+15=05x2+2(2x-5)=05y2+5y+18=0
x2-10x-19=03x2+2(4x+1)=05y2-6y-13=0
x2-7x+16=03x2+4(4x+5)=03y2+3y+17=0
x2+8x-3=05x2+3(3x-1)=02y2+7y-6=0
x2+3x-13=06x2+2(2x-1)=05y2+9y+7=0
x2+5x+17=04x2-2(2x-2)=02y2-6y-18=0
x2-6x-5=06x2+2(4x+5)=02y2-7y-6=0
x2-8x-7=05x2-3(4x+4)=04y2-8y-20=0
x2+2x+8=02x2-3(3x-5)=04y2-2y+7=0
x2+2x+8=03x2-3(4x+2)=02y2+9y-2=0
x2-7x+11=03x2-5(4x-1)=02y2+4y-8=0
x2-2x+1=03x2-4(3x+5)=02y2-2y+13=0
x2-10x+18=04x2+2(3x-5)=05y2-2y+11=0
x2+5x+9=02x2+2(3x-5)=03y2-2y-9=0
x2+7x-7=03x2+4(2x-1)=04y2-9y+5=0
x2-3x-9=05x2-5(4x+1)=03y2+5y-19=0
x2-3x+13=02x2-4(4x-1)=04y2+6y+10=0
x2+2x-8=05x2-3(2x-4)=04y2+2y-19=0
x2-3x+9=06x2-2(2x+5)=02y2-5y+16=0
x2+4x-19=02x2+2(4x-1)=04y2+6y-9=0
x2-3x+5=04x2+5(3x+2)=05y2+4y+18=0
x2+8x-11=02x2-5(2x-3)=02y2-10y+20=0
x2-5x+3=02x2-4(2x+4)=05y2-3y-19=0
x2-10x+16=03x2-2(2x-4)=04y2+9y-19=0
x2-8x+18=04x2+2(4x+2)=05y2-4y-17=0
x2+8x+12=04x2-5(4x+4)=04y2-5y+16=0
x2+7x+12=04x2-3(2x+1)=05y2-7y+19=0
x2+10x+14=03x2-3(2x-5)=05y2+7y+6=0
x2+4x-3=06x2-3(2x-4)=02y2+8y-9=0
x2-10x-18=02x2+3(2x+1)=02y2-2y+10=0