Solving a Radical Equation Using Factoring and Checking Your Answers

The video tutorial covers solving equations involving square roots by isolating the square root term and squaring both sides. It explains the use of the FOIL method to expand expressions and form quadratic equations. The tutorial then demonstrates solving these quadratics by factoring and emphasizes the importance of checking solutions to identify extraneous ones.

What is the first step to solve the equation involving square roots?

Explain the process of squaring the expression X + 5.

What are the two numbers that multiply to give 18 and add to give 9?

How do you check if the solutions found are valid?

What is an extraneous solution, and how did it appear in this problem?