Learn how to rationalize denominator when radicand is a binomial

The video tutorial explains how to rationalize a radical expression by multiplying by X^2 - 4. It demonstrates the process of simplifying the expression using the difference of two squares, resulting in a final expression of sqrt(X^2 - 4) / (X + 2). The tutorial emphasizes the importance of rationalizing the denominator and provides a step-by-step guide to achieve this.

Why is it unnecessary to multiply by the conjugate in this case?

Evaluate responses using AI:

OFF

Describe the final expression obtained after simplifying the radical expression.

Evaluate responses using AI:

OFF