February 8 - Bob Dylan's hour long documentary film, Eat the Document, premieres at New York's Academy of Music. The film includes footage from Dylan's 1966 UK tour
... to both sides, getting
<math>x^2+\frac{b}{a}x+\frac{b^2}{4a^2}=-\frac{c}{a}+\frac{b^2}{4a^2}.</math>
The left side is now a perfect square; it is the ...