Number of Miles 210
Major Cities Along the Route
Intersections with other Interstates
Spur Routes
See also:
... b/(2a) 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> ...