Giải hệ phương trình: \( \left \{ \begin{array}{l}x + y = 4 \ \{x^3} + {y^3} = 4{x^2} + 4{y^2} - 12 \end{array} \right. \)
A.\(\left( {x;y} \right) \in \left\{ {\left( {1;3} \right);\left( {3;1} \right)} \right\}\).
B.\(\left( {x;y} \right) \in \left\{ {\left( {\dfrac{5}{3};\dfrac{7}{3}} \right);\left( {\dfrac{7}{3};\dfrac{5}{3}} \right)} \right\}\).
C.\(\left( {x;y} \right) \in \left\{ {\left( {2;2} \right)} \right\}\).
D.\(\left( {x;y} \right) \in \left\{ {\left( {-1;5} \right);\left( {5;-1} \right)} \right\}\).
A.\(\left( {x;y} \right) \in \left\{ {\left( {1;3} \right);\left( {3;1} \right)} \right\}\).
B.\(\left( {x;y} \right) \in \left\{ {\left( {\dfrac{5}{3};\dfrac{7}{3}} \right);\left( {\dfrac{7}{3};\dfrac{5}{3}} \right)} \right\}\).
C.\(\left( {x;y} \right) \in \left\{ {\left( {2;2} \right)} \right\}\).
D.\(\left( {x;y} \right) \in \left\{ {\left( {-1;5} \right);\left( {5;-1} \right)} \right\}\).
Loga
Hóa Học lớp 12
