Buna, am nevoie urgent de rezolavarea exerctiului. Dau coroana!

Răspuns:
(18/5√(3)-12/4√(3)-6/2√(3)+8/2√(3))-(4/3√(2)+3/2√(2)-40/12√(2))=
(18/5√(3)-6/2√(3)-6/2√(3)+8/2√(3))-(4/3√(2)+3/2√(2)-40/12√(2))=
(36-30-30+40)/10√(3)- (8+9-20)/6√(2)=8/5√(3)+3/√(2)=(16√(3)+45√(2))/30