# Ch 4: Introduction to Quadratics

Watch online video lessons to learn about the quadratic formula, the greatest common factor, quadratic inequalities and more. Take the quizzes that accompany each lesson to measure your learning.

## Introduction to Quadratics - Chapter Summary and Learning Objectives

Let instructors teaching this chapter introduce you to quadratic expressions, along with the various methods used to factor and solve these second-order polynomials. Each video lesson includes sample problems and multiple-choice quizzes to get you plenty of practice working with quadratics in all of their various forms. By the time you finish this chapter, you should be able to:

• Solve quadratic equations by factoring
• Convert quadratic equations into standard form
• Use two binomials to solve quadratic inequalities
• Apply the substitution method to solve a quadratic equation

Video Objectives
What Is a Quadratic Equation? - Definition & Examples Learn what a quadratic equation is. Get some examples of why they're useful in algebra.
Solving Quadratics: Assigning the Greatest Common Factor and Multiplication Property of Zero Discover how to solve quadratic equations by assigning the greatest common factor or applying the multiplication property of zero.
How to Use the Quadratic Formula to Solve a Quadratic Equation Find out how to use the quadratic formula to solve a quadratic equation that can't be factored.
How to Solve Quadratics That Are Not in Standard Form Use algebra to convert quadratic equations into standard form, so you can solve them by factoring or applying the quadratic formula.
Solving Quadratic Inequalities Using Two Binomials Learn how to break quadratic inequalities into two binomials and solve for x.
Solving Quadratic Equations by Substitution Examine the uses of the substitution method to solve quadratic equations.

6 Lessons in Chapter 4: Introduction to Quadratics
Test your knowledge with a 30-question chapter practice test
Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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