Algebra is essentially basic math (addition, subtraction, multiplication and division) that also uses letters of the alphabet to represent certain unknown values, called variables. You probably already know most of the operation symbols you will need to know to answer the algebra questions on the GED math test, such as + – x and ÷. The only additional symbols you will need to know pertain to multiplication and division.
2 · a
All of the above mean the same thing: 2 times a.
You might run into the term coefficient. This is the number next to a variable, the 2 in 2a above, and it just means a number you multiply a variable by. If there is a variable without a number next to it, then the coefficient is understood to be 1.
a = 1a
For division you might see ÷, as in 2 ÷ a (2 divided by a) or a division step might be represented as a fraction:
More about the algebra you will need to know for the GED math test:
Simplifying Complex Equations
Using Algebra to Solve Word Problems
Finding the Distance Between Two Points on a Coordinate Grid
Finding the Slope of a Line
Multiplying Algebraic Expressions
Finding the Greatest Common Factor
Factoring by Grouping
Factoring to Reverse FOIL