# Ch 20: High School Algebra: Cubic Equations

Watch online video lessons and learn about perfect cubes, radical equations, synthetic division and more. These video lessons are short and engaging and make learning easy!

## High School Algebra: Cubic Equations - Chapter Summary and Learning Objectives

Lessons in this chapter begin by introducing you to the practical applications of cubic equations. Our instructor also outlines methods for simplifying these equations and removing radicals so you can solve them with ease. Examples are included in every lesson, as are short multiple-choice quizzes useful for solidifying your understanding of the material. This chapter is designed to teach you how to:

• Solve cubic equations with irrational cube roots
• Solve cubic equations with integers
• Factor cubic equations

Video Objectives
What is a Cubic Equation? - Definition & Examples Learn what a cubic equation is and why they're important to algebra and in real life.
How to Solve Perfectly Cubed Equations Find out how to solve an equation with two terms that are both perfect cubes.
How to Solve Equations that are Not Perfectly Cubed Examine methods for solving a cubic equation with irrational cube roots.
Using the Greatest Common Factor to Solve Cubic Equations Practice solving cubic equations in which you can factor out a variable using the greatest common factor.
Grouping to Factor Cubic Equations Describe the process of grouping to factor cubic equations.
Solving Cubic Equations with Integers Explain how to apply the method of integer factors to solve cubic equations with all integer solutions.
Changing Radical Equations into Linear or Quadratic Equations Examine why you would convert an equation containing radicals into either a linear or quadratic equation. Learn how to raise the radical to a power that changes the fractional exponent to 1.
Squaring Both Sides of an Equation Twice Learn how to square terms twice in order to get rid of all the radicals in an equation.

Final Exam
Chapter Exam

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