Grade 9 MATHEMATICS Quarter 1 – Module 4: Quadratic Equations and Inequalities Lesson 1: Solving Problems Involving Quadratic Equations EASE Module 4 Systems of Liner Equations and Inequalities Equation 2 EASE Module 2 Systems of Linear Equations and Inequalities EASE Module 1 Quadratic Equations DLM 2 – Unit 2: Quadratic equations Method in Solving Linear Equations and Inequalities in One Variable EASE Module 2 Quadratic Equations Solving Quadratic Equations by Extracting Square Roots : Activity Sheets in Mathematics 9