Analyzing the Formula for a Rectangle's Perimeter Using the Associative Property

The video tutorial explains how to view parts of an expression as a single entity using the associative property, focusing on the formula for a rectangle's perimeter. It defines perimeter and rectangle, then analyzes the perimeter formula in different ways. Initially, the formula is broken down into length plus length plus width plus width. Using the associative property, it is simplified to 2l plus 2w. An alternative method groups length and width together, resulting in 2 times l plus w. The video concludes with a summary of these methods.

How can you alter the perimeter formula using the associative property?

What are the three different ways to express the perimeter of a rectangle as discussed in the video?