Simplify square root

Here is the rule: when a and b are not negative

√ (ab) = √a * √b

Example: simplify √8

√8 = √ (4*2) = √4 * √2 = 2√2

(Because the square root of 4 is 2)

In other words 2 x 4 = 8 = √2 x 4 but 4 can be simplified more (2 x 2) so 2 (previous 4) moves to the left of the square root leaving 2√2

To simplify a square root: make the number inside the square root as small as possible (but still a whole number)

or you can use a simplifying square root calculator.