http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Quadratic Equations - The Quadratic Formula
1 online resource (streaming video file) (31 minutes): digital, .flv file, sound
For those cases that defy simple factoring, the quadratic formula provides a powerful technique for solving quadratic equations. Discover that this formidable-looking expression is not as difficult as it appears and is well worth committing to memory. Also learn how to determine if a quadratic equation has no solutions.
Originally produced by The Great Courses in 2009.