# Algebra Basics, Expressions and Polynomials

Algebra is a branch of mathematics that deals with performing arithmetic or mathematical computations with variables, or symbols that don’t have predetermined values. Unlike numerals with fixed values, variables represent unknown values. It is one of the main focuses of the GED Math test, particularly algebraic problem-solving.

Many people are scared of algebra because letters replacing numbers look complicated, but once you understand it, you will see that it has many applications in real life. Algebra is used in may day-to-day activities, such as determining temperature, speed, prices of items, or a number of ingredients used in cooking. It is also used in financial transactions, especially when you need to compare the advantages and disadvantages of things you are planning to buy.

To learn algebra, you need to learn how to balance equations. Equations contain variables (the letters that represent a quantity) and a constant number (the number that has a fixed value). Two key concepts in algebra are an algebraic expression or a mathematical phrase that contains basic operations, variables, and numbers, and polynomials, a series of terms joined together by addition or subtraction, such as x2 + 5x + 9. In algebra, terms are expressions that have a number and a variable, such as 2x or 5y.

What to Expect from the Algebra Basics, Expressions, and Polynomials GED Practice Test

To test and strengthen your ability to solve algebra word problems, you will be able to do the following in this GED practice test:

1. Simplify algebraic expressions
2. Solve rational equations
3. Add, subtract, multiply, and divide polynomials
4. Find the absolute value of a rational number
5. Calculate with signed numbers
6. Convert numbers to scientific notation
7. Factor polynomial expressions
8. Solve algebra equations in word problems
9. Solve equations using multiple steps
10. Determine when a numerical expression is undefined

You can use this GED Math practice test in two ways. First is to test your current skill level and ability to solve algebraic problems. It will help you see where you need to improve. Second is to check how much you have understood from reviewing algebra. You can take this practice test after watching our video lessons.