Question

5. If 3 ^ x - 3 ^ (x - 1) = 54 then find the value of prime x​

Answer 1

Answer:

3^x-3^(x-1)=54

3.3^(x-1)-3^(x-1)=54

3^(x-1){3-1}=54

3^(x-1)×2=54

3^(x-1)=27=3^3

x-1=3

x=3+1=4 Ans