How to factor using the grouping method

The video tutorial covers the process of factoring algebraic expressions, starting with an introduction to the concept and initial steps. It then explores various factoring methods, including difference of squares, difference of cubes, factoring trinomials, and factoring by grouping. The focus is on factoring by grouping, especially for expressions with four terms. The tutorial demonstrates how to group terms, factor out the greatest common factor (GCF), and ensure the expressions in parentheses are identical for successful factoring.

What is the significance of factoring out the GCF in the process described?

How do you determine what to factor out from the terms?