Question

log_5 135-log_5 5.4+3^log_3 4

Answer 1

$log_{5} 135-log_{5} 5.4+ 3^{log_{3} 4} = log_{5} \frac{135}{5.4}+ 3^{log_{3} 4}= log_{5} 25+4=2+4=6$

Answer 2

log₅135-log₅5,4+3^log₃4=log₅(135/5,4)+4=log₅25+4=2+4=6.