February 19 - Marilyn Manson files a defamation countersuit against former Spin Magazine[?] editor Craig Marks, in response to a multi-million dollar lawsuit that Marks filed in January against the singer, the record label Nothing/Interscope, and Manson's bodyguard agency.
February 20 - Trace Adkins[?] performs his first concert following surgery for tendon damage and a broken ankle. Contrary to doctors orders, Adkins does not remain seated during the performance.
February 25 - The Artist Formerly Known as Prince files a lawsuit against nine Web sites for copyright and trademark infringement, claiming that the websites sell bootlegged recordings and offer unauthorized song downloads.
March 1 - Sony Music Distribution raises wholesale prices on audio Compact Discs by 8 cents
March 5 - Trauma Entertainment[?] files a $40 million breach-of-contract lawsuit against the members of Bush for failing to deliver a new album.
March 6 - A 67 year old George Jones is seriously injured in a car accident while on his way home. Jones' Lexus crashes into a bridge at about 1:30 p.m. It is later revealed that alcohol was a factor in the accident.
April 19 - Neil Young performs at Madison Square Garden in New York City. Due to a mistake by a Madison Square Garden staff member, the marquee read "Bob Dylan, Tonight at 8pm". Young jokingly introduced one of his guitar players as Bob Dylan during the show.
April 20 - Billy Joel performs at the Meadowlands[?] in New Jersey. Joel announces that this would be his last public pop music concert. Joel also announces plans on devoting his future efforts to classical music.
December 29 - Former BeatleGeorge Harrison is stabbed several times in the chest by an unknown assailant, who had broke into Harrison's home. Harrison's wife wrestled the knife out the assailant's hand before the police arrived. The man apparently believed that Harrison was the devil.
... we get
<math>x=\frac{-b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.</math>
Generalizations
The formula and its proof remain ...