# How do you simplify #2^(5/2) - 2^(3/2)#?

##### 2 Answers

Apr 9, 2015

In general

so

and since

Jul 17, 2017

#### Explanation:

Do not be tempted to simplify the indices. These are separate terms.

However, we can factorise and take out a common factor of

When you are dividing and the bases are the same, subtract the indices.

Another approach to simplify this is: