( 2 căn 3 - 3 căn 2 ) ^2 + 2 căn 6 + 3 căn 24

 $(2\sqrt[]{3}-3\sqrt[]{2})^2+2\sqrt[]{6}+3\sqrt[]{24}$

$ =12-2.2\sqrt[]{3}.3\sqrt[]{2}+18+2\sqrt[]{6} +3\sqrt[]{2^2.6}$

$ = 30 - 12\sqrt[]{6} + 2\sqrt[]{6} + 6\sqrt[]{6}$

$ = 30-4\sqrt[]{6}$