#1 I'm not sure about so I'll leave that to someone else. Some trick that is escaping me at the moment.

#2 Remember:

Apply the appropriate exponents, multiply out and use your properties of addition for logarithms to further simplify.

#3 Is where we want to use the change of base rule:

In this instance, we want to change the log base 4 and log base 8 into something that we can merge with our log base 2. Seeing as 4 and 8 are powers of 2, this seems like an appropriate way to go: