Simplify a rational expression by factoring out common terms

The video tutorial explains the rules for multiplication and division, highlighting that addition and subtraction cannot be separated over these operations. It introduces factoring as a method to simplify expressions, demonstrating how to factor both the numerator and denominator. The tutorial concludes by showing how to simplify the expression once it is rewritten in terms of multiplication.

How does the teacher illustrate the process of factoring in the lesson?

What steps are involved in simplifying expressions after factoring them?