Before students are presented with the quadratic formula, they’re taught a simpler method to solve certain equations. For simplicity, we’ll consider an equation where a = 1. x ² – 4 x – 5 = 0 ...

P. Bhimasankaram, Dibyen Majumdar, Hermitian and Nonnegative Definite Solutions of Some Matrix Equations Connected with Distribution of Quadratic Forms, Sankhyā: The Indian Journal of Statistics, ...