Question

log in baza 3 din (x patrat + 1) = log in baza 3 din 1

Answer 1

$log_3(x^2+1)=log_31 \\ x^2+1=1 \\ x^2=0 \\ x=0$

Answer 2

$\log_3(x^2+1)=\log_31\Rightarrow x^2+1=1\Rightarrow x^2=0\Rightarrow\boxed{ x=0}$