Tolong dibantu yaa....

1. (log 15/150)(log 75/7,5) = (log 10^-1)(log 10)
= -1 x 1 = -1

2. (3 log ^2 (3^3) - 1) / 3log 3^(3/2) - 3 log 3^(1/2)
= (3^2 - 2) - (3/2 - 1/2)
= 8 / (2/2)
= 8