Question

Rezolvati in multimea nr reale ecuatia (3^x-1)(3^x-3)=0

Answer 1

3^x -1 = 0             3^x = 3⁰          x=0 
3^x -3 =0             3^x =3¹            x=1

Answer 2

$( 3^{x}-1)(3 ^{x} -3)=0=\ \textgreater \ \\ \\ =\ \textgreater \ 3^{x}-1=0=\ \textgreater \ 3^{x}=1=\ \textgreater \ \boxed{x=0} \\ SAU \\ =\ \textgreater \ 3^{x}-3=0=\ \textgreater \ 3^{x}=3=\ \textgreater \ \boxed{x=1}$