Question

3^x+4+3^x+2=270

Answer 1

\(3^{x+4}+3^{x+2}=270\)

\(\Leftrightarrow3^x\cdot90=270\)

hay x=1

Answer 2

\(3^{x+2}.3^2+3^{x+2}=270\)

\(3^{x+2}\left(3^2+1\right)=270\)

\(3^{x+2}.10=270\)

\(3^{x+2}=27\)

⇒x+2=3

⇒x=1