Question

scrieti nr naturalx care verifica egalitatea

2^x+2^x+2=80

Answer 1

$2^{x}+2^{x+2} =80 \\ \\ 2^{x+2} = 2^{x}* 2^{2} \\ \\ 2^x{(1+ 2^{2^ }})=80$
$2^{x} *5=80 \\ \\ 2^x=16 \\ \\ 2^x=2^{4} \\ \\ x=4$