Question

Resolva:
2^x + 4 = 16 

Answer 1

$2^x+4=16\\ \\ 2^x=12\\ \\ log(2^x)=log12\\ \\ x.log2=log12\\ \\ \boxed{x=\frac{log12}{log2}} \ \ \ agora \ tabela \ (ou \ calculadora)$

Answer 2

Resolva:

2^x + 4 = 16 

2^x+4=2^4

x+4=4

x=4-4

x=0

S=[0]