This first video explains Solving Quadratic Equation by Completing the Square. It shows examples of quadratic equations and how to solve it and there is narration during the video as he is sovling. The program they are using also explains the steps occasionally if you can't hear the narrator. In the beginning he solves the eqautions by using the sqaure root property, but after example 4 he starts solving them by Completing the Square.
This video teaches you how to solve quadratic equations by factoring. There is explanation, narration, and examples in this video and as the narrator is solving he is also explaining what he's doing every step of the way.
In this last video, it is also explaining how to solve quadratic equations by factoring. It only has one example but it explains every example step by step. It also has narration and nothing is left out.