# How do you simplify #2 sqrt20 - 3 sqrt 7- 2 sqrtt 5 + 4 sqrt 63#?

##### 1 Answer

Jan 15, 2018

#### Answer:

#### Explanation:

I am **presuming** that there is a typo in the third term where instead of

Using that **presumption**, I shall calculate the above as:

Reduce the first and the last terms by first factorising and then removing the squares from under the square root sign.

Rearrange with the preceding signs to put like terms together.

If I have erred in my original presumption, this answer will not apply. :)