D
donquanhao_ub
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
Giải hệ
[tex]\left\{ \begin{array}{l} x^2+xy=x+2 \\ (2y^2+5)x+13x^2=26 \end{array} \right.[/tex]
[tex]\left\{ \begin{array}{l} x^2+xy=x+2 \\ (2y^2+5)x+13x^2=26 \end{array} \right.[/tex]