Can you elaborate on the reason why we look for pairs of numbers or variables when we simplify square root expressions?

We look for pairs of numbers in order to further simplify certain unsimplified square roots. For example, the square root of 20. From this, we pull out a 5 and two 2’s, Since there is a pair of 2’s, we carry one out, and since the 5 is not a pair, it stays inside of the radical. Therefore making it 2√5.

B.) x=3

Step-by-step explanation: