x 2 -y 2 -5x+5y, x 2-y 2+5x+3y+4, y 3x 5 y 4x 2 x, x+y/2 4 x/3+2y 5, y x 2-4x+5, x 2-4x-y 2-6y-5, x 3y/x 4+y 2, x 2-y 2-1.5 x-y, 3x 2y -xy 2+2y+4, y x 2-4x+3, x2-xy-2y2-4x+5y+3, x 2-x y+5 -4y-9, y 2-x 3-x 2, y - x 4-x 3-3x 2+x+2, x 2+y 2+6x-4y 3, 5x-3y x+2y, 3x2+5xy-2y2-x+5y-2, 5x2-4xy+y2-2y+8x+3, 2y+x 2y-3x, 3x+2y 5, y -x2+4x-3, 3x2+5xy-2y2+x+9y-4, y x2-3x+4
x 2-y 2 5x 3y 4. There are any references about x 2-y 2 5x 3y 4 in here. you can look below.
x 2 -y 2 -5x+5y
x 2-y 2+5x+3y+4
y 3x 5 y 4x 2 x
x+y/2 4 x/3+2y 5
y x 2-4x+5
x 2-4x-y 2-6y-5
x 3y/x 4+y 2
x 2-y 2-1.5 x-y
3x 2y -xy 2+2y+4
y x 2-4x+3
x2-xy-2y2-4x+5y+3
x 2-x y+5 -4y-9
y 2-x 3-x 2
y - x 4-x 3-3x 2+x+2
x 2+y 2+6x-4y 3
5x-3y x+2y
3x2+5xy-2y2-x+5y-2
5x2-4xy+y2-2y+8x+3
2y+x 2y-3x
3x+2y 5
y -x2+4x-3
3x2+5xy-2y2+x+9y-4
y x2-3x+4
x 2 -y 2 -5x+5y, x 2-y 2+5x+3y+4, y 3x 5 y 4x 2 x, x+y/2 4 x/3+2y 5, y x 2-4x+5, x 2-4x-y 2-6y-5, x 3y/x 4+y 2, x 2-y 2-1.5 x-y, 3x 2y -xy 2+2y+4, y x 2-4x+3, x2-xy-2y2-4x+5y+3, x 2-x y+5 -4y-9, y 2-x 3-x 2, y - x 4-x 3-3x 2+x+2, x 2+y 2+6x-4y 3, 5x-3y x+2y, 3x2+5xy-2y2-x+5y-2, 5x2-4xy+y2-2y+8x+3, 2y+x 2y-3x, 3x+2y 5, y -x2+4x-3, 3x2+5xy-2y2+x+9y-4, y x2-3x+4
