Question

3\(^{x-1}\)+3\(^{^{ }x}\)+3\(^{x+1}\)=1053

giúp m,ình với

Answer 1

\(3^x:3+3^x+3^x.3=1053\)

\(3^x.\left(\dfrac{1}{3}+1+3\right)=1053\)

\(3^x.\dfrac{13}{3}=1053\)

\(3^x=243\)

\(x=5\)