T
talata0166


giai giup minh bai nay voi:
giai he pt:[tex]\left\{ \begin{array}{l} x^2+y^2+xy+1 = 4y \\ y(x+y)^2=2x^2+7y+2 \end{array} \right.[/tex]
giai he pt:[tex]\left\{ \begin{array}{l} x^2+y^2+xy+1 = 4y \\ y(x+y)^2=2x^2+7y+2 \end{array} \right.[/tex]