5m Zen
X2 4xy y2
X2 4xy y2 pictures 5
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X2 4xy
X2 4xy y2
x2 + y2 u003d4xy u09B9u09B2u09C7
x2 u4E57 4xy y2 u4E57
differentiate x2 y2 4xy
x2 2xy y2 4xy
x2 y2 2 4xy
1 x2y2 4xy x2 y2
factorise x2+4xy+y2
x2 4xy y2 4
x2 4xy y2
x2 4xy y2 0
