Răspuns :

(√3-√2)²=formula a²-2ab+b²=(√3)²-2·√3·√2+(√2)²
(rd3-rd2)²   folosesti formula  (a-b)²=a²-2ab+b²      (rd3)²-2(rd3)(rd2)+(rd2)²=3-2rd6+2=5-2rd6