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Ch 2: TASC Math: Complex and Imaginary Numbers Review

About This Chapter

Prepare for the TASC Math test by watching these educational videos on imaginary and complex numbers. The self-paced lessons in this chapter can help you brush up on the basics of complex number addition, multiplication and more.

Complex and Imaginary Numbers Review - Chapter Summary

Prepare for questions related to complex and imaginary numbers on the TASC Math test with help from our online lessons and quizzes. The videos include topics related to:

  • Imaginary numbers
  • Adding and subtracting with complex numbers
  • Performing multiplication and division with complex numbers
  • Graphing complex numbers
  • Quadratic equations with complex number solutions

The video lessons in this chapter are taught by experienced instructors and include a variety of illustrations and real-world examples to help you learn. Each lesson includes a multiple-choice quiz and a transcript that highlights key terms. An end-of-chapter test is also available to help test your knowledge of complex numbers.

TASC Math Objectives

Similar to the GED, the TASC is a high school equivalency exam that assesses a student's abilities in five main subject areas: reading, writing, math, science and social studies. The math subtest is divided into two sections and includes questions from topics in algebra, geometry, numbers and quantity, functions and statistics. You may encounter questions related to the topics in this chapter within the algebra content area.

5 Lessons in Chapter 2: TASC Math: Complex and Imaginary Numbers Review
Test your knowledge with a 30-question chapter practice test
What is an Imaginary Number?

1. What is an Imaginary Number?

The imaginary number 'i' is the square root of -1. Although this number doesn't actually exist, pretending that it does allows us to do a bunch of crazy math that scientists use every day. Learn the basics of that number 'i' here!

How to Add, Subtract and Multiply Complex Numbers

2. How to Add, Subtract and Multiply Complex Numbers

Knowing that complex numbers exist is the first step. But that knowledge alone won't help you do much with them. Learn the basics of complex number addition, subtraction and multiplication here!

How to Divide Complex Numbers

3. How to Divide Complex Numbers

While adding, subtracting and multiplying complex numbers is pretty straightforward, dividing them can be pretty tricky. It comes down to the process of multiplying by the complex conjugate. Learn about what that is, and how to do it, here.

How to Graph a Complex Number on the Complex Plane

4. How to Graph a Complex Number on the Complex Plane

Graphing complex numbers is pretty straight forward, but it's not necessarily intuitive. Check out this lesson to learn the vocabulary and the conventions that you'll need.

How to Solve Quadratics with Complex Numbers as the Solution

5. How to Solve Quadratics with Complex Numbers as the Solution

When you solve a quadratic equation with the quadratic formula and get a negative on the inside of the square root, what do you do? The short answer is that you use an imaginary number. For the longer, more helpful answer, check out this lesson!

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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