Find the center and radius of a circle with completing the square

The video tutorial explains the process of completing the square for quadratic expressions. It begins with grouping terms and rearranging them, followed by using color coding to aid visualization. The instructor demonstrates the step-by-step process of completing the square for both X and Y terms, leading to the creation of binomial squares. Finally, the tutorial covers finding the center and radius of a circle derived from the completed square form.

What is the final form of the equation after completing the square for both X's and Y's?

How can you simplify the radius obtained from the completed square equation?