John Marcellus Huston (August 5, 1906 - August 28, 1987) was a film director. He was born in Nevada, Missouri, the son of the actor Walter Huston. He began his film career as a screenwriter and made films mainly from proven books or plays.
... 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 its ...