一元二次方程专项练习 (31)

 

x2+3x-13=0

x2+5x+7=0

x2+6x+12=0

x2-4x-14=06x2-4(4x+2)=0 5x2-2(4x+5)=0 6x2+2(4x-3)=04x2-3(4x+4)=03y2+2y+1=0 3y2-8y+2=04y2+4y+12=02y2+8y+17=0

x2-2x+2=0 4x2+5(3x+4)=0 3y2-6y+17=0 x2+9x-7=0

x2+4x-19=0

x2+9x+8=0 5x2+4(3x-1)=0 5x2-3(2x-4)=0 6x2+2(2x-3)=0 2y2+4y-1=0 2y2+6y+20=0 5y2+8y+3=0

x2-7x-8=0 4x2-2(4x-1)=0 4y2-4y-19=0 x2-4x+15=0

x2-6x-18=0

x2-3x-8=0 5x2+4(3x+5)=0 5x2-5(3x-5)=0 3x2-5(4x-1)=0 4y2-4y-2=0 2y2-6y-1=0 2y2-6y-13=0

x2-7x-14=0 x2+3x+10=0 x2-6x+17=0

x2-9x-17=0 2x2+2(2x+1)=0 5x2-2(3x-2)=0 3x2+2(2x-5)=0 3x2+4(2x+2)=0 4y2-6y+11=0 5y2+10y+11=0 2y2+9y-11=0 2y2-10y-15=0

x2-6x-3=0 x2-9x-16=0 x2+4x+17=0 x2-4x+13=0 6x2-5(3x+4)=0 6x2-2(2x-1)=0 3x2-4(4x-2)=0 3x2-5(4x+1)=0 4y2-9y-6=0 3y2-7y+8=0 3y2+8y+20=0 2y2-10y-1=0

x2-3x+1=0 6x2+5(3x+1)=0 5y2+2y-20=0 x2+8x+13=0

x2+9x-5=0

x2+4x+13=0 5x2-3(2x-5)=0 5x2+3(4x-1)=0 5x2+2(3x-1)=0 4y2+3y-15=0 3y2-5y-6=0 2y2+2y+16=0

x2+5x+6=0 4x2+3(2x-5)=0 x2-10x-18=0 4x2-2(4x-5)=0 x2+4x+3=0 5x2+3(4x-1)=0 x2-5x+1=0 6x2-5(2x-5)=0 3y2+5y+6=0 4y2+4y+15=0 2y2+6y-12=0 5y2-10y-7=0

x2+8x-7=0 2x2-4(4x+1)=0 x2-10x-20=0 6x2-4(4x-4)=0 x2+4x-11=0 6x2-3(4x-3)=0 x2-4x+4=0 4x2-5(4x-3)=0 4y2-5y+4=0 2y2-4y-11=0 4y2+9y+16=0 3y2-7y+14=0

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