How do i solve n squared - 62

The rule for this one is called the difference of squares

A^2 - b ^2 = (a+b) (a-b)

Using this rule

N^2 - 62 = (n + sqrt (62)) (n - sqrt (62))

The solution for this one is to make the statement = 0

0 = (n + sqrt (62)) (n - sqrt (62))

N can either be + - sqrt (62)