Simplifying a rational expression by factoring

The video tutorial explains how to factor expressions in both the numerator and denominator. It covers identifying the greatest common factor (GCF) and using the difference of squares method for factoring. The tutorial also discusses restrictions on variable values to avoid division by zero and demonstrates the final simplification of the expression while maintaining these restrictions.

What is the first step in factoring the expression mentioned in the text?

Explain the significance of the GCF in the numerator of the expression.

What does the term 'difference of two squares' refer to in the context of the denominator?

What is the final simplified expression after factoring, and what restrictions apply?

Why is it important to note the restrictions on the values of y?