Question

(2√3+5)(5-2√3)+(4-√5)²+8√5 ajutațima va rog dau coroana

Answer 1

(10√3+7-25+10√3)+(16-4√5+5) + 8√5
(7-25)+21-4√5+8√5
-18+21+2√5
+13+2√5 
sPER CA AM FACUT CORECT 

Answer 2

(5+2√3)(5-2√3)+(16+5-8√5)+8√5=5²-(2√3)²+21-8√5+8√5=25-12+21....