N
nhokkon048@yahoo.com.vn


Bài 1:
[tex]\left\{ \begin{array}{l} mx + 4y = m \\ x + my = m - 1 \end{array} \right.[/tex]
Bai2:
[tex]\left\{ \begin{array}{l} x + y + xy = 7 \\ x^2 + y^2 = 10 \end{array} \right.[/tex]
[tex]\left\{ \begin{array}{l} mx + 4y = m \\ x + my = m - 1 \end{array} \right.[/tex]
Bai2:
[tex]\left\{ \begin{array}{l} x + y + xy = 7 \\ x^2 + y^2 = 10 \end{array} \right.[/tex]