The class with the most views as seen from my computer at 8:00am Wednesday will get the night off of homework (and assuming that 90% of the class can recite the formula).
As of Tuesday morning, 8d is crushing 8F. You gotta be kiding me 8F, they have almost doubled you! You must be hoping for homework Wednesday night.
Quadratic formula intro 1
Quadratic formula intro 2
Tom Sawyer conclusion