Răspuns :
[tex]( 3^{x}-1)(3 ^{x} -3)=0=\ \textgreater \ \\ \\ =\ \textgreater \ 3^{x}-1=0=\ \textgreater \ 3^{x}=1=\ \textgreater \ \boxed{x=0} \\ SAU \\ =\ \textgreater \ 3^{x}-3=0=\ \textgreater \ 3^{x}=3=\ \textgreater \ \boxed{x=1} [/tex]