Question 895971
Assuming we're dealing with log base 10



log(25) + log(64) = log(25*64)


log(25) + log(64) = log(1600)


log(25) + log(64) = log(16*100)


log(25) + log(64) = log(16)+log(100)


log(25) + log(64) = log(16)+2



If you want to use a calculator, then log(25) + log(64) = 3.20411998265592 approximately