# How do you evaluate #3^ { - 2} + 4^ { - 1}#?

##### 1 Answer

Feb 23, 2017

#### Explanation:

We can start by remembering that

We can now evaluate the powers:

Next let's find a common denominator:

Feb 23, 2017

We can start by remembering that

We can now evaluate the powers:

Next let's find a common denominator: