Question

preciso calcular x nas igualdades:a) log2 x=5 e b) log(x-1) = 2 me ajudem!!!

Answer 1

$a) \ log_2x=5\Rightarrow x=2^5\Rightarrow x=32\\ \\ b) \ log(x-1)=2 \\ \\ x-1=10^2\\ \\ x-1=100\\ \\ x=101$