http://www.erowid.org/chemicals/amt/
http://leda.lycaeum.org/Chemicals/AMT.168.shtml
http://www.pooterland.com/index2/looking_glass/merry_pranksters/body_merry_pranksters
... square roots of both sides yields <math>x+\frac{b}{2a}=\frac{\pm\sqrt{b^2-4ac}}{2a}.</math> Subtracting b/(2a) from both ...