How to Memorize the Quadratic Formula in 20 Seconds! (and then use it to Solve Quadratic Equations!) 

This video shows a quick memorizing tool that most students verify: you will have the quadratic formula memorized in 20 seconds or less. Of course we then go through some examples of how to use the Quadratic Formula to complete this video! For an organized list of my math videos, please go to this website: sites.google.c...