Question

How do you solve `4 ^ (4x-6) = 39`?

Answer 1

`x=1/4 (ln39/ln4 +6)~~2.16`

Explanation:

`ln4^(4x-6)=ln39`

`(4x-6)ln4=ln39`

`4x-6=ln39/ln4`

`4x=ln39/ln4 +6`

`x=1/4 (ln39/ln4 +6)~~2.16`