# How do you simplify #2^3xx2^-5#?

##### 2 Answers

#### Explanation:

We will use the rules of indices.

We know,

So, Here,

We can use other laws of indices here.

Using this,

And there are other ways too...

Hope this helps.

Using the same format as the question:

Two raise to the power of negative two.

#### Explanation:

Write as

A whole number is what is called a **'rational number'**. This means that it can be written in the fractional format of

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Note that another way of writing

Putting this back together we have:

Another way of writing

Also note that

So

Hope this helps!