Evaluating a rational expression with factorials

The video tutorial explains how to simplify factorials by dividing them to achieve a simpler result. It begins with a definition of factorials, followed by a step-by-step calculation process. The tutorial then demonstrates how to simplify factorials by canceling out terms, leading to a final answer. Tips for simplifying factorials, especially when dealing with rational expressions, are also provided.

What is the final answer obtained from the factorial simplification mentioned?

What strategy is suggested for simplifying factorials with rationals?