4x 2-6xy+3y 2-x-2y-3 0, 4x2-8x+5 0, 4x-3y-6z 0 x+2y-7z 0, 4x 2+9y 2 1, 4x-3y -2 2x+2y -8, 4.3y 8.4/0.8, 9x 2-4y 2+4y-1, 4x2-4xy-3y2-4x+10y-3, 4.2y8.9/0.5, x-2y 3 and 4x-8y 12, x 2+8y 2+4xy-2x-4y 4, 4.8x4.8, 2.4y8.3/1.6, 3x+4y 8, 4.4y8.5/1.2, x 4y -8 x-4y -8, 5.2y 8.2/10.4, 2.8x1.4, 2.5y8/4, y -3x+4 -6x-2y -8, 2.5y8.5/0.8, y -8x+10 2y-4x 40
4x 2 8y 2 8xy 4y-8 0. There are any references about 4x 2 8y 2 8xy 4y-8 0 in here. you can look below.