Question

3^x+^1=243

Answer 1

sai đề rồi

Answer 2

gợi ý nha 243=3^5

Answer 3

\(3^{x+1}=243\)

\(\Rightarrow3^{x+1}=3^5\)

\(\Rightarrow x+1=5\)

\(\Rightarrow x=5-1=4\)

Vậy x=4

Answer 4

\(3^{x+1}=243\)

\(3^{x+1}=3^5\)

\(\Rightarrow x+1=5\)

     \(x=5-1\)

     \(x=4\)