See also: Orders of magnitude
Conversion Calculator for Units of AREA (http://www.ex.ac.uk/cimt/dictunit/ccarea.htm)
... 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 ...