This algebra video tutorial explains how to solve quadratic equations by completing the square. Here are some other YouTube videos with more example problems:
Quadratic Equations - Free Formula Sheet: https://www.video-tutor.net/algebra-formula-sheet.html
Quadratic Equations - More Videos:
https://www.video-tutor.net/quadratic-equations.html
Final Exam and Test Prep Videos:
https://bit.ly/41WNmI9