Question

How do you solve `9^(2x+1)=12`?

Answer 1

`x=1/2 (ln12/ln9-1)~~0.065`

Explanation:

`ln 9^(2x+1) = ln12`

`(2x+1)ln9=ln12`

`2x+1=ln12/ln9`

`2x=ln12/ln9-1`

`x=1/2 (ln12/ln9-1)~~0.065`