Grade 9 MATHEMATICS Quarter 1 – Module 4: Quadratic Equations and Inequalities Lesson 1: Solving Problems Involving Quadratic Equations DLM 2 – Unit 2: Quadratic equations Grade 9 Mathematics The Nature of the Roots of a Quadratics Equation and the Sum and the Product of Roots of Quadratic Equations Grade 9 MATHEMATICS Quarter 1 – Module 2 Lesson 1: The Nature of the Roots of a Quadratic Equation Lesson 2: The Sum and the Product of Roots of Quadratic Equations APEX Chapter 3 Quadratic Functions Problems Involving Equations and Inequalities in One Variable EASE Module 2 Quadratic Equations Self-Learning Modules-Quarter 1-Mathematics: Grade 9-Modules 1-23 EASE Module Fourth Year Quadratic Functions, Modules 4