# How do you evaluate √50 - √ 8?

##### 1 Answer

Nov 4, 2015

#### Answer:

#### Explanation:

It is a matter of splitting up the numbers (partitioning) into squares. These squares can then be taken out of the root.

In this case

So we can now write the expression as:

As both have the same "units" we can subtract them directly. Thus we have: