Quadratic Formula Leave a Comment / SS 3 Mathematics (1st, 2nd & 3rd Term), Mathematics (All Classes) / By Mr. Kelvin / Quadratic Formula, SS 3 Mathematics (1st Term) Quadratic FormulaSee alsoCompleting the square method Quadratic Equation by Factorization MethodFactorization of Quadratic ExpressionsQUADRATIC EQUATION & SYMMETRIC PROPERTIES OF THE ROOTCompleting the square