Completing the square to solve a quadratic function

The video tutorial explains the process of completing the square for solving quadratic equations. It begins with factoring to make 'a' equal to 1, followed by adjustments in the equation. The instructor highlights common mistakes, such as forgetting to multiply terms correctly, and provides corrections. The tutorial then guides through solving the equation by undoing operations and taking the square root. The session concludes with final steps and addressing student questions.

How do you undo squaring in the process of solving an equation?

What is the final expression for X after completing the square and solving the equation?