It's really not that hard. Here, I'll show you an example.

\(\sqrt{100}\)

So you take the square root of 100 and see what two number can multiply to get 100.

You can multiply 10 and 10 to get 100.

\(\sqrt{100}\)

** ^**

** 10 10**

Then you see what two numbers you can multiply to get 10. 2 and 5

\(\sqrt{100}\)

** ^**

**10 10**

** ^ ^**

**2 5 2 5**

Then you write out the number that you got from least to greastest.

**2,2,5,5**

Then since you have two 2's and two 5's you combine them to make them one 2 and one 5

You then take both of the numbers outside of the square root.

\(2*5\sqrt{}\)

You then multiply then numbers and get your answer, which is 10.