Question

Va rog cu rezolvari complete nu doar raspunsul. Multumesc anticipat!

Answer 1

a+b√c = (3√2+7)²
a+b√c=18+42√2+49
a+b√c= 67+42√2 ⇒ a = 67 ; b = 42 ; c = 2 ; 

a+b√c = (2√5-2)²
a+b√c = 20-8√5+4
a+b√c = 24-8√5. ⇒a = 24 ; b = -8 ; c = 5 . 

a+b√c = (7+√13)²
a+b√c= 49+ 14√13+ 13 
a+b√c =  62+14√13 ⇒ a = 62 ; b = 14 ; c = 13 . 

a+b√c = (11-2√2)²
a+b√c = 121 - 44√2 + 8
a+b√c=129-44√2. ⇒ a = 129 ; b = -44 ; c = 2 ;