28. Expand as much as possible using the properties of logarithms: log ((R/4)^3)

Reading this, it was my understanding I needed to use rules two and three http://www.purplemath.com/modules/logrules.htm

I should be using rule 2) logb(m/n) = logb(m) – logb(n), and 3) logb(m^n) = n · logb(m)

My answer according to these rules would be 3LogR - Log4

However, the answer according to my book is 3LogR + Log4

Is my book wrong? I hope not because I'm studying for an algebra placement test.