Question

How do you simplify `sqrt(168)`?

Answer 1

=`2 * sqrt (42)`

Explanation:

First factorize the given no `168`.

`168` can be written as `(169-1)` =>

`168` can be written as `sqrt(13^2-1^2)` => `sqrt (12 * 14)`

=`2* sqrt (6*7)` = `2 sqrt 42`