They can be simplified by combining them. Like Terms: Like terms are terms whose variables and exponent power are the same. There are two kinds of terms in algebra: Like Terms and Unlike Terms. The factors of a term are the numbers or variables that are multiplied to form the term.įor example, the factors of the term 9xy are 9, x, and y. Let us look at a few more algebraic expressions.Ī coefficient is a number multiplied by the variable.The coefficient of 5 x + 10 is 5 and When we combine constants and variables connected by mathematical operations such as +, -, x, and ÷, we get an algebraic expression. What Is an Algebraic Expression?Īn algebraic expression consists of unknown variables, numbers, and arithmetic operators. When we subtract the number of uneaten candy bars from the number of candy bars Tim’s grandma gave him, we will learn how many he has eaten already.
The letter x represents the unknown quantity and is known as a variable. We do not know how many candy bars Tim’s grandma gave him, so we will call it x. Constants are numbers that have a fixed numerical value. We know how many candy bars are left, so the number 5 would be called the constant. For example, Tim’s grandma gave him many candy bars. Algebra is the part of mathematics that helps represent problems or situations in the form of mathematical expressions.
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