Demonstrates the steps involved in solving a general polynomial, including how to use the Rational Roots Test and synthetic division. Points out when using a graphing calculator can be very helpful.

The imaginary number (also called the imaginary unit) is defined as the square root of negative one. This site explains the rational for the existence of the imaginary number "i" and gives formulas involving "i" including Euler's...

[Free Registration/Login may be required to access all resource tools.] Simplify radical expressions by using distribution and rationalizing the denominator.

The steps to solving a rational equation are presented along with an explanation of extraneous roots.

Discusses what numbers are and how our understanding of them has evolved over thousands of years, from simple counting to negative numbers and irrational numbers, for example. Includes a set of practice questions where students identify...

Explore the world of range in Algebra in this mini-lesson. Provides a definition and examples that help with understanding how to find the range of a function and domain. Includes solved examples and interactive questions with answers.

This video lesson demonstrates how to simplify radical expressions by rationalizing the denominator. The tutorial includes detailed examples.

Providing one activity, one practice exercise, and two teacher resources, the information at this website is geared toward students who already understand rational and irrational numbers. The activity has explanations of what happens...

In Spanish. In this site you will practice working with whole and rational exponents with different interactive activities.

Step-by-step explanations of the exponent laws including rules for combining powers and roots. Includes practice exercises.

In a format like TV's "Who Wants to Be a Millionaire," students answer math questions about radicals to earn points and help their group win the game. Teachers need to create their own question bank, which allows this game to be used for...

This comprehensive study guide highlights the main terms and formulas needed to review irrational numbers and radicals. Examples are included.

A more advanced review of algebra concepts and practice review problems ranging from the basic rules of algebra to polynomials. A good test of readiness for higher level math courses.

[Free Registration/Login may be required to access all resource tools.] In this lesson students learn how to simplify expressions involving the multiplication and division of radicals. Students examine guided notes, review guided...

This comprehensive study guide highlights the main terms and formulas needed to understand the basics of real numbers. Examples are included.

Brush up on your math skills relating to irrational numbers then try some practice problems to test your understanding.

[Free Registration/Login Required] In this flipchart, students apply estimation strategies to predict or determine the reasonableness of answers in situations involving computation on rational numbers in various forms including whole...

[Free Registration/Login may be required to access all resource tools.] This lesson introduces rational exponents and how to relate them to nth roots.

Learn the steps necessary for multiplying and dividing radicals. The examples are easy to follow.

The laws for simplifying radicals are presented along with several examples and exercises that put the laws to practice.

A thorough investigation of what the discriminant is and how it is used. Contains examples and exercises, with answers on the page.

[Free Registration/Login may be required to access all resource tools.] Learn how to simplify different forms of radicals.

At this site from Wikipedia you can learn the definition of an irrational number, then look at examples and explanations of why some numbers are irrational and others are not.