tolong dibantu dong

2log 16 - 3log 27 + 5log 1
2log 2^4 - 3log 3^3 + 5log1
= 4 - 3 + 0
= 1
2) 2log 8- 1/2log 0,25 + 3log 1/27 + 2log 1
= 2log 2^3 - 1/2log (1/2)^2 + 3log (3)^-3 +2log 1
= 3 - 2 - 3 + 0
= -2
3) 5log 75 -3log 54 - 5log 3 + 3log 2
= 5log ( 3.5^2) -3log (2.3^3) -5log 3 + 3log 2
= 5log 3 + 5log 5^2 -3log 2 -3log 3^3 - 5log 3 + 3log 2
= 2 -3 = -1
4) ,log 180 = log (4.5.9 )
= log 4 + log 5 + log 3^2
= log 4 + log 5 + 2.log 3
= 0,6021 + 0,6990 + 0,9542
= 2,2553