Solve a quadratic by applying the square root method

The video tutorial explains how to solve quadratic equations using the square root method in two different ways: factoring and without factoring. The instructor demonstrates both methods, highlighting the importance of factoring to simplify the problem and showing that both approaches lead to the same solution. The tutorial concludes with the final answer, emphasizing the need to consider both positive and negative roots when taking the square root.

What is the final answer for both problems when using the square root method?

Why must you include both positive and negative values when taking the square root of a number?