See also: List of years in literature
(Please add to this list. If you have read any of the books above, why not write an article for Wikipedia?)
... of b/(2a) 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 ...