N
nttuyen1996


Giải hệ.
$\left\{ \begin{array}{l}2y^3 - x^3 = 1 \\ 2x^2- y^2= 2y- x \end{array} \right.$
$\left\{ \begin{array}{l}2y^3 - x^3 = 1 \\ 2x^2- y^2= 2y- x \end{array} \right.$
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