Question

What is the simplest radical form of 120?

Answer 1

You may factorise the number and see if there are any squares that you can take out of the root.

If you work this out, you will find that `120=2*2*2*3*5`

You can take two of the `2`'s out: `=2sqrt(2*3*5)=2sqrt30`

Or make it like:

`2*sqrt2*sqrt3*sqrt5`