• O algoritmo de Euclides
• Equações quadráticas (pelo antigo método árabe)
• Incomensurabilidade
• Algarismos de Controlo

Da página SOS Math (Factorization and Roots of Polynomials):

• Polynomial Long Division
• An Introduction: Factoring and Roots of Polynomials
• Finding Roots of Polynomials Graphically and Numerically
• The Fundamental Theorem of Algebra
• Factoring: Some Special Cases
• Quadratic Polynomials: Factoring by Guessing
• Quadratic Polynomials: Completing the Square
• Quadratic Polynomials: The Quadratic Formula
• Factoring over the Complex Numbers
• Rational Zeros of Polynomials
• The "Cubic Formula"
• The Geometry of the Cubic Formula
• The "Quartic Formula"