Postmasters General
[1] Since July 1, 1971, the Postmaster General has been appointed by and serves under the Governor of the United States Postal Service[?].
... from both sides, 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 ...