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Sub-topics: 9.1 The quadratic polynomial ax² + bx + c. Graph of a quadratic function. Roots of a qua… (6) 9.2 General theory of quadratic equations, relation between roots and coefficients. The discriminant (2) 9.3 Classification of quadratic expressions; identity of two quadratic expressions. (1) 9.4 Equations reducible to quadratics. (1) 9.5 The parabola defined as a locus. The equation x² = 4Ay. Use of change of origin when vertex (3) 9.6 E Parametric representation. Applications to problems concerned with tangents, normals an… (2)