What Is Evaluating An Expression

Are You Prepare to Evaluate Algebraic Expressions?

In the past, you've evaluated numerical expressions past using the lodge of operations. We are going to use these same rules to evaluate algebraic expressions.

What is an Algebraic Expression?

An Algebraic expression is an expression that yous volition encounter most often once you start Algebra. In Algebra we piece of work with variables and numerals.

A variable is a symbol, normally a letter of the alphabet, that represents 1 or more numbers.

Thus, an algebraic expression consists of numbers, variables, and operations.

Examples of Algebraic Expressions

An algebraic expression consists of numbers, variables, and operations. Here are a few examples:

In order to evaluate an algebraic expression, y'all must know the exact values for each variable. Then y'all volition simply substitute and evaluate using the guild of operations. Take a look at example ane.

Example i - Evaluating Algebraic Expressions

Now, lets evaluate algebraic expressions with more one variable. Don't forget to always use the club of operations when evaluating the expression after substituting.

Case two - Expressions with More than Than One Variable

And... one last example where we will await at the fraction bar equally a grouping symbol and evaluating the expression when yous have more than one of the same variable.

Example 3 - Using the Fraction Bar equally a Grouping Symbol

If you are familiar with the gild of operations, then evaluating algebraic expressions is quite like shooting fish in a barrel! Just call up to substitute the given values for each variable and evaluate.

The next lesson in this unit of measurement is translating algebraic expressions.

Evaluate Expressions

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