Question

3^x - 3⁴ : 3² = 234

 

Answer 1

3ˣ - 3⁴ : 3² = 234

3ˣ - 9 = 234

3ˣ = 234 + 9

3ˣ⁼ = 243

3ˣ = 3⁵

x = 5

Answer 2

\(3^x-3^4:3^2=243\)

\(\Rightarrow3^x-3^{4-2}=234\)

\(\Rightarrow3^x-3^2=234\)

\(\Rightarrow3^x=234+9\)

\(\Rightarrow3^x=243\)

\(\Rightarrow3^x=3^5\)

\(\Rightarrow x=5\)