Logarithm Rules. Understand the rules for logarithms. You should be able to write logarithms as sums, differences or multiples of logarithms when appropriate. Or, rewrite expressions in terms of several logarithms to be in terms of single logarithms. For example,
$\log_2 32 (a+1)^{-4} = A + B \log_2 (C)$ where $A =$ and
$B =$ are numbers and
$C=$ is an expression in terms of $a$.