Question

plss îmi trebuie doar rezultatul cine îl face corect îi dau coroana ​

Answer 1

$\displaystyle a=2\sqrt{3} +5\sqrt{2} ,~b=3\sqrt{2} -4\sqrt{3} ,~c=6\sqrt{2} -5\sqrt{3} \\\\ a-b-c=2\sqrt{3} +5\sqrt{2} -\Big(3\sqrt{2} -4\sqrt{3} \Big)-\Big(6\sqrt{2} -5\sqrt{3} \Big)=\\\\ =2\sqrt{3} +5\sqrt{2} -3\sqrt{2} +4\sqrt{3} -6\sqrt{2} +5\sqrt{3} =-4\sqrt{2} +11\sqrt{3}$