Question

resolva a equação exponencial
2^x-1 + 5.2^x = 11

Answer 1

$2^{x-1}+5.2^x=11\\ \\ \frac{2^x}{2}+5.2^x=11\\ \\ 2^x+10.2^x=22\\ \\ 11.2^x=22\\ \\ 2^x=2\\ \\ x=1$