Simplifying the square root of an expression

The video tutorial explains how to simplify radical expressions by identifying square numbers and rewriting non-square numbers as products of square numbers and other numbers. It covers simplifying variables with exponents and emphasizes the importance of using absolute values to ensure positive results. The tutorial provides a step-by-step approach to understanding and applying these concepts.

Why is it important to represent the square root of a variable with an absolute value?

What is the final simplified form of the expression discussed in the video?