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calculati
(2,5+3)^2
daca se poate prin foto
urgenttttttt


Răspuns :

(2,5+3)^2=2,8^2=7,84 sau (2,5+3)²= 5,5²=30,25
(2,5+3)² =( 2,5)² + 2*2,5*3+ 3²
               =6,25+5*3+9
                =6,25+15+9=30,25

sau direct: (2,5+3)²= 5,5²=30,25