log3 x=3log3 8-3log3 4
x>0
log3 x=log3 8^3 - log3 4^3
log3 x = log3 8^3/4^3
x = 2^3 = 8
log3 x=3 (log3 8 - log3 4) = 3 log3 8/4 = 3 log3 2 = log3 2^2 = log 3 8
x=8
