You can
put this solution on YOUR website!given:

(1)

I will say that:

(2)

Now the problem is to find

in terms of

I will take the

th root of both sides of (2)
(2)

(2)

--------------
Now I will raise each side of (2) to the

power
(2)

but,
(1)

so,

take log base 2 of both sides

This is the best I can do, because if I do the
substitution

, then

just
gets eliminated from the equation.
-------------------------------
check answer using my Casio fx-115ES
I'll pick any value for

, like

(1)

(1)

Take log base 9 of both sides
(1)

(1)

and

so

close enough