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Before we start working with variables, it's important to understand some basic terminology. When you're finished looking at this page, you should have a basic understanding of the terminology needed to add, subtract, multiply and divide terms. At the bottom of this page, you'll be able to follow a link to practice what you've learned!
A term is number, variable, or combination of numbers and varibles. The following is an example of a term...
The term 3x2 is listed in the picture above. Notice the different parts of the term which are labeled. A coefficient is a number that is used to multiply a variable. A variable is a symbol for a number that we don't know. An exponent (also called a power) is a number that tells us how how many times we are multiplying that number or variable.
An expression is a group of terms separated by a + or - sign. The following is an example of an expression...
Notice that there are five terms in the expression above. Each term is separated by a + or - sign.
An expression is a group of terms separated by a + or - sign. The following is an example of an expression...
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