5m Zen
X2 4xy x
X2 4xy x pictures 5
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X2 4xy
X2 4xy x
x y 2 4xy x2 y2
u0443u043Fu0440u043Eu0441u0442u0438u0442u0435 u0432u044Bu0440u0430u0436u0435u043Du0438u0435 x2 4xy x 3y
x 4y )( x2 4xy 16y2
x2 y2 4xy find x y
x2 4xy 4y2 x 2y
x2 4y2 4xy then x y
x2 4xy x
