Redirected from Km
See 1 E3 m to compare the length of a kilometre.
See also: SI, metre, SI prefix, Orders of magnitude, light year External link
... 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 proof remain ...