Question

Qual a resolução de 2^x+1 + 2^x = 48?

Obs.: Equação exponencial.

Answer 1

$2^{x+1}+2^x=48\\\\2*2^x+2^x=48\\\\3*2^x=48\\\\2^x=16\\\\2^x=2^4\\\\ \boxed{x=4}$