Question 89334
{{{log(x,9) = 2^3}}}
Read it like this: "The exponent with base x which gives me 9 is 2^3"
Then rewrite it as
{{{x^(2^3) = 9}}}
{{{x^8 = 9}}}
{{{x^8 = 3^2}}}
This is 
{{{(x^4)^2 = 3^2}}}
take the square root of both sides
{{{x^4 = 3}}}
Take the 4th root of both sides
{{{x = 3^(1/4)}}}
answer