How to simplify the square root of an expression

The video tutorial explains how to simplify expressions involving square roots using prime factorization and an alternative method. It begins by demonstrating the use of prime factorization to simplify expressions and then introduces a method that involves rewriting numbers as squared numbers. The tutorial emphasizes understanding square numbers and their role in simplification, providing examples to illustrate the process.

Describe the method of simplifying square roots by pairing factors.

What are the first square numbers up to 10, and why are they important in this context?