Jawabanmu

2014-09-05T08:05:33+07:00
1. log 30/x=log 10
30/x = 10
x= 3

2. ^3 log 27= 3
^3log 3^3 = 3

3. ^2x log 27 = 3
2x^3 = 27
8x^3=27
x^3=27/8
x= 3/2