Identifying Extraneous Solutions in Radical Equations

The video tutorial explains how to identify extraneous solutions in radical equations. It begins with an introduction to the concept of extraneous solutions and the importance of ensuring that solutions do not result in negative numbers under a square root. The tutorial then covers the definition of a radicand and its significance. It proceeds to demonstrate solving a radical equation using inverse properties and checking solutions through substitution to verify their validity. The lesson emphasizes the need to identify and exclude extraneous solutions.

Explain why the square root of a negative number is considered undefined.

How do you check if a solution found in a radical equation is extraneous?