Question

[Trần Đức Mạnh]

\(\left\{{}\begin{matrix}x^2+x+\frac{1}{y}\left(1+\frac{1}{y}\right)=4\\x^3+\frac{x}{y^2}+\frac{x^2}{y}+\frac{1}{y^3=4}\end{matrix}\right.\)

Answer 1

[Huyền]