Răspuns :
[tex] (2-\sqrt{2} )^2+2\sqrt{2} (2-\sqrt{2}) =(2-\sqrt{2})(2-\sqrt{2}+2\sqrt{2} )=(2-\sqrt{2})(2-\sqrt{2} )=(2-\sqrt{2})^2 =4-4\sqrt{2}+2=6-2\sqrt{2} [/tex]
[tex] (2-\sqrt{2} )^2+2\sqrt{2} (2-\sqrt{2}) =(2-\sqrt{2})(2-\sqrt{2}+2\sqrt{2} )=(2-\sqrt{2})(2-\sqrt{2} )=(2-\sqrt{2})^2 =4-4\sqrt{2}+2=6-2\sqrt{2} [/tex]