Question

comparati 5 la puterea a 8 cu 2 la puterea a 15 +2×4 la puterea a 7

Answer 1

$2^{15}+2*4^7=2^{15}+2*(2^2)^7=2^{15}+2*2^{14}=2^{15}+2^{15}=2*2^{15}=2^{16}=4^8$

$4^8<5^8=\textgreater 2^{15}+2*4^7<5^8$