Redirected from List of rare diseases/N
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
... 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> Generalizations The ...