log (9 * x) 3 * log (9) 25 = log(3) 5 * log(x) 3 * log(3 * x) 3; log (9 * x) 3 * log (3 ^ 2) 5 ^ 2 = log(3) 5 * log(x) 3 * log(3 * x) 3; log (9 * x) 3 * 2 / 2 * log (3) 5 = log(3) 5 * log(x) 3 * log(3 * x) 3; log (9 * x) 3 * log (3) 5 = log(3) 5 * log(x) 3 * log(3 * x) 3; 1 / log (3) (9 * x) = 1 / log(3) x * 1 / log 3 (3 * x); 1 / (log (3) (9) + log3 (x))= 1 / log(3) x * 1 / (log 3 (3) + log 3 (x)); 1 / (2 + log3 (x))= 1 / log(3) x * 1 / (1 + log 3 (x)); 2 + log3 (x) = log(3) x * (1 + log 3 (x); (log 3 (x)) ^ 2 + log(3) x = 2 + log3 (x);(log 3 (x)) ^ 2 = 2;1) log 3 (x) = √2;x = 3 ^ √2;2) log 3 (x) = - √2;x = 3 ^ (- √2).