Jawabanmu

2014-09-07T13:09:31+07:00
a log 2x + 3 (a log x - a log y)= a log 2x + 3 a log x -  3 a log y
= a log 2x + a log x^3 - a log y^3
= a log (2x.x^3)/y^3
= a log 2x^4/y^3.