log2 225- 2/log5 2 - log2 9 + 5^1/log9 25

log(2) 225 - 2/log(5) 2 - log(2) 9 + 5^(1/log9 25) =
= log(2) 225 - 2*log(2) 5 - log(2) 9 + 5^{1\log(3^2) 5^2)} =
= log(2) 225 - log(2) 5^2 - log(2) 9 + 5^{(1\2)*2 *1\log(3) 5)} =
= log(2) {225 : 5^2 : 9} + 5^{1\log(3) 5)} =
= log(2) 1 + 5^(log(5) 3) =
= 0 + 3 = 3