Definition Of Expression In Math With Example

An example of a mathematical expression with a variable is 2 x 3.

Definition of expression in math with example.

An expression is a mathematical phrase that combines numbers and or variables using mathematical operations. In these lessons we will learn what variables constants terms expressions and coefficients are in algebra. Numbers symbols and operators such as and times grouped together that show the value of something. For example variables and or numerals that appear alone or in combination with operators are expressions.

The structure of an expression is. Scroll down the page for more examples. This math operation can be addition subtraction multiplication and division. In mathematics an expression or mathematical expression is a finite combination of symbols that is well formed according to rules that depend on the context.

An expression is a representation of a value. Example of a variable expression an example of a variable expression or an algebraic expression is 5x 7 5 x 7 evaluating a variable expression. The following diagram gives an example of algebraic expression. For example the formula for the area of a circle a π r2 gives the dependent variable a the area as a function of the independent variable r the radius.

Illustrated definition of expression. An expression is a sentence with a minimum of two numbers and at least one math operation. An expression can be arithmetic algebraic polynomial and analytical. Like terms are terms that have the same variable part i e.

Definition of expression in mathematics the expression is defined as a phrase that groups together numbers constant letters variables or their combination joined by operators to represent the value of something. The following diagram shows some examples of like terms. They only differ in their coefficients. Expression number math operator number.

Many widely used mathematical formulas are expressions of known functions. A variable expression or an algebraic expression is a combination of terms by the operations such as addition subtraction multiplication division etc. All variables must have a coefficient a.