# How do you simplify #3 *2 ^ 0 - 2 ^ -1#?

##### 1 Answer

Mar 2, 2016

#### Explanation:

We will need the two following rules:

#a^0=1# #a^-b=1/a^b#

The expression can then be rewritten as

#=3*1-1/2^1#

#=3-1/2#

#=6/2-1/2#

#=5/2#

Just pay close attention to order of operations.