en.wikipedia.org/wiki/Algebraic_expression

In mathematics, an algebraic expression is an expression built up from integer constants, variables, and the algebraic operations For example, 3 x 2 − 2 x y + c ...

www.themathpage.com/alg/algebraic-expressions.htm

Terms versus factors. Values and evaluations. The order of operations. Powers and exponents. Why do we use letters in algebra?

www.jamesbrennan.org/algebra/intro%20to%20algebra/simplifying_algebraic_expression.htm

By “simplifying” an algebraic expression, we mean writing it in the most compact or efficient manner, without changing the value of the expression. This mainly ...

www.mathgoodies.com/glossary/term.asp?term=algebraic%20expression

Math definition for algebraic expression. Our Math Glossary provides more than simple definitions: A link to a related lesson is provided for each term in our ...

home.avvanta.com/~math/def2.cgi?t=expression

An algebraic expression is a mathematical phrase that can contain ordinary numbers, variables (like x or y) and operators (like add,subtract,multiply, and divide).

www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equivalent-exp/cc-6th-parts-of-expressions/v/expression-terms-factors-and-coefficients

This video explains what the words term, factor, and coefficient mean. Think of an expression as a sentence. A sentence has parts, and so does an algebraic ...

www.khanacademy.org/math/algebra/introduction-to-algebra/alg1-writing-expressions/v/writing-expressions-1

Learn how to write simple algebraic expressions. ... is "undefined" - it has no meaning, while the variable you are supposed to use does have a meaning.

www.mathplanet.com/education/algebra-1/discovering-expressions,-equations-and-functions/expressions-and-variables

A variable, as we learned in pre-algebra, is a letter that represents unspecified numbers. One may use a variable in the same manner as all other numerals: ...