About This Chapter
Basics of Algebra - Chapter Summary
Use this chapter to get reacquainted with the basics of algebra. Expert instructors have developed fun video and text lessons you can use to boost your knowledge of various algebraic expressions. Examine the definitions of these expressions, and review examples that help clarify their meaning. Once you've finished this chapter, you will be able to:
- Define the mathematical expression
- Share the meaning of an algebraic expression, and write equivalent expressions
- Evaluate simple algebraic expressions, and factor quadratic expressions
- Rewrite the quadratic equation to make it easier to solve
Utilize the resources in this chapter to simplify the process of understanding the basics of algebra. Access lessons anytime from any computer or mobile device. Review them in the sequence you choose, and revisit them as often as you'd like. Take short multiple-choice quizzes to assess your understanding of algebra basics. Use the chapter exam to get a more comprehensive review of lesson concepts.
1. What is a Mathematical Expression? - Definition & Examples
This lesson will explain how to recognize a mathematical expression and the parts that make up a mathematical expression. You will also learn some of the basic vocabulary used when discussing mathematical expressions.
2. Writing Equivalent Expressions: Definition & Examples
In this lesson, you'll learn what an algebraic expression is and what makes two algebraic expressions equivalent. You'll also see some examples of equivalent expressions.
3. Evaluating Simple Algebraic Expressions
In this lesson, we'll learn how to evaluate algebraic expressions, which involves substituting numbers for variables and following the order of operations. By the end of the lesson, you'll be an algebraic expression expert.
4. Factoring Quadratic Expressions: Examples & Concepts
In this lesson, you will learn the trick to factoring quadratic expressions. Also, because not all quadratics can be factored, you can discover how to identify the expressions that you can't simplify.
5. Write the Standard Form of an Equation by Completing the Square
In math, we have a process called completing the square where you take your quadratic equation and rewrite it to make it easier to solve. Watch this video lesson to learn how you can do this process easily yourself.
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Other chapters within the NYSTCE CST Multi-Subject - Secondary Teachers (241/242/245): Practice & Study Guide course
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