Learn the Sridharacharya Formula used to solve quadratic equations. Explore its definition, derivation, step-by-step proof, and solved examples to understand the concept better. Learn to solve quadratic equations using the Sridharacharya Formula with step-by-step examples and benefits. Later, Sridharacharya (C.E. 1025) derived a formula, now known as the quadratic formula, (as quoted by Bhaskara II) for solving a quadratic equation by the method of completing the square. Here you will learn how to solve quadratic equation using quadratic formula or sridharacharya formula with examples. Let’s begin –. For the equation \ (ax^2 + bx + c\) = 0, if \ (b^2 – 4ac\) \ (\ge\) 0, then. x = (\ (-b + \sqrt {b^2 -4ac}\over 2a\)) and x = (\ (-b – \sqrt {b^2 -4ac}\over 2a\))