Ross Powers (February 10, 1979- ) is a world champion snowboarder from Stratton, Vermont. He led a U.S. sweep in the 2002 Winter Olympics men's halfpipe competition a day after his 23rd birthday, the first time the Americans have swept a Winter Olympic event since the men's figure skaters did in 1956. Powers, with a score of 46.1, dominated the competition.
... so we add the square 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 ...