5m Zen
X2 2xy y2 1
X2 2xy y2 1 pictures 5
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X2 2xy
X2 2xy y2 1
x2 y2 2xy x y 1
y 3x 1 x2 2xy y2 9
x2 y2 1 dx 2xy dy 0
factorize 1 x2 2xy y2
1 x2 2xy y2 x 1
x2 y2 2xy 2x 2y 1
dy dx x2 y2 1 2xy
factorise x2 2xy y2 1
x2 2xy y2 1 0
x2 2xy y2 1
