This is the full lesson on how to convert a quadratic from standard form to vertex from using the method of completing the square. It involves creating a perfect square trinomial so that you can factor it to get the binomial squared that is an essential component of a vertex form quadratic.
0:00 - intro
1:33 - recognizing a perfect square trinomial
3:08 - example 1 - creating a perfect square trinomial
7:53 - example 2a - completing the square
12:02 - example 2b - completing the square
14:31 - example 2c - completing the square
16:10 - example 2d - completing the square
20:00 - example 3a - graphing
23:30 - example 3b - graphing
27:12 - example 3c - graphing