x²-8x+7=0
x²-16x+64=0
x²+10x+9=0
2x²-x-3=0
3x²-5x+2=0
2x²-7x+3=0
3x²+x-2=0
2x²+3x+1=0
x²-6x+8=0
-5x²+8x-3=0
x²+3x-1=0
12x²-13x+1=0
-2x²-9x+5=0
2x²-9x+5=0
-8x²-10x+3=0
5x²-3x-2=0
x²-6x+9=0
2x2+7x+3=0
-5x²-2x-4=0
-x²+6x+3=0
3x²-5x+6=0
