Question

Ma puteri ajuta la niste exercitii ?
5 la puterea 4 - ( 2 • 11 ) la puterea 2 - 11 la puterea 2

Answer 1

$5^4-(2 \cdot 11)^2-11^2=625-22^2-121=625-484-121=141-121 \\ =\boxed{20}.$

Answer 2

5 la puterea 4 = 625
2 x 11 la puterea 2 = 2 la puterea 2 x 11 la puterea 2 = 4 x 121
obtinem exercitiul
 625 -484 -121= 141- 121 = 20