"Schulmathematik." . . "MATHEMATICS Algebra Intermediate." . . "Mathematical Association of America." . . . . . . "Electronic books"@en . . . . . . . . . . . . "Beyond the quadratic formula" . "Beyond the quadratic formula"@en . . "Online-Publikation" . . . . . . . . "Beyond the Quadratic" . "Beyond the Quadratic"@en . . . . . . . . . . . "Livres électroniques" . . . "Geometry." . . "Geometry" . "Polynom." . . . . "Mathematikunterricht." . . "Algebraische Gleichung." . . "MATHEMATICS Algebra General." . . "Quadratische Gleichung." . .