X2 y2 2 x2 2xy y2

X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2
X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2X2 y2 2 x2 2xy y2