EntityQ15909572· pop 29· linked from 86 articlesquadratic formulaSign in to saveformula that provides the solution(s) to a quadratic equationConnectionspolynomialEntityDiophantus of AlexandriaEntitycubic functionEntity±Entityquartic functionEntityquintic functionEntityRené DescartesEntityEuclidEntityInternational Standard Book NumberEntityMuḥammad ibn Musa al-KhwarizmiEntitycomplex numberEntityreal numberEntityBrahmaguptaEntitydigital object identifierEntitysquare rootEntityquadratic equationEntityElementsEntityparabolaEntitylinear equationEntityphysical quantityEntityCategoriesElementary algebraEquations