Question

Select the correct answer. What is the solution to this equation? 9^x-1=2

Answer 1

See below which answer is most appropriate

Explanation:

If you mean
`9^(x-1)=2`:

`9^(x-1)=2`

`x-1=log_9(2)`

`x=log_9(2)+1`

If you mean
`9^x-1=2`:

`9^x-1=2`

`9^x=3`

`3^(2x)=3`

`2x=1`

`x=(1)/(2)`