x2-9x-4=0x2-8x-11=0x2-10x+8=0
x2-4x-10=02x2+2(3x-4)=0 3x2+3(3x+3)=04x2-3(2x+1)=0 3x2+3(3x+1)=0 4y2-10y-5=0 5y2+7y+1=02y2-8y-5=0 3y2-3y+8=0
x2+6x-13=0
x2-5x-14=0
x2-3x+20=0
x2-8x-13=0 2x2-3(2x+5)=0 4x2-2(2x+1)=0 3x2-5(2x+5)=0 3x2-3(2x+1)=0 3y2+6y+19=0 3y2-4y-13=0 3y2+4y-6=0 5y2+8y-15=0
x2-5x-15=0
x2-2x-15=0
x2+2x-20=0
x2-7x-17=0 3x2+5(2x-4)=0 6x2+3(2x-1)=0 4x2+2(4x+5)=0 3x2-3(4x+1)=0 5y2+7y-19=0 2y2-5y-17=0 4y2-3y+15=0 2y2-3y-13=0
x2-4x-17=0 4x2+2(4x-3)=0 4y2+2y-6=0 x2+8x+4=0 x2-10x-7=0 x2+4x-11=0 6x2+3(3x-5)=0 3x2+4(2x-1)=0 5x2+5(3x+3)=0 4y2-8y-8=0 3y2-10y+5=0 5y2-4y+12=0
x2+7x-15=0 x2+9x+3=0 x2-4x+15=0 x2-5x+17=0 4x2+2(2x+3)=0 4x2-5(2x+3)=0 3x2+4(2x+1)=0 3x2+5(2x+1)=0 4y2-10y+13=0 2y2-7y+19=0 3y2+2y+7=0 2y2+9y+19=0
x2-5x-14=0 2x2-3(4x-2)=0 4y2-2y+15=0 x2-4x-13=0
x2+9x+13=0
x2-2x+15=0 6x2-2(3x+5)=0 4x2-3(4x-5)=0 6x2+2(4x+5)=0 3y2-7y+20=0 3y2+6y-1=0 4y2+2y-7=0
x2+2x+12=0 6x2-3(3x-5)=0 5y2+4y-19=0 x2+10x-13=0 5x2+4(3x-4)=0 4y2+7y+16=0 x2+2x+3=0 5x2-3(3x-4)=0 4y2-10y+16=0 x2-4x+6=0 6x2+5(2x+3)=0 4y2+10y-20=0
x2+2x-3=0 x2-2x+5=0 x2-3x+6=0 x2+9x-15=0 3x2-2(2x-3)=0 4x2-2(2x+5)=0 6x2-4(3x+4)=0 5x2+3(4x-5)=0 4y2-5y-13=0 3y2-7y-19=0 5y2-6y+11=0 5y2+4y-8=0
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