Qatar is a country in the Middle East.
Much of the information in these articles is from the CIA World Factbook 2000 and the 2003 U.S. Department of State website.
... The formula reads <math> x=\frac{-b \pm \sqrt {b^2-4ac}}{2a} </math> The term b2 – 4ac is called the discriminant of the quadratic equation, ...