Understanding Algebraic Expressions: Formation and Components Algebraic expressions consist of variables and constants, where variables can take various values while constants remain fixed. These expressions are formed through operations like addition, subtraction, multiplication, and division. For example, the expression 6x + 9 is created by multiplying x with 6 and adding 9. Terms within an expression are added together; each term consists of factors that include coefficients—numerical components associated with variable terms.
Combining Like Terms & Evaluating Expressions Like terms share identical algebraic factors while unlike terms do not; only like terms can be combined in calculations. Examples illustrate how to identify these relationships among different algebraic forms such as monomials (one term), binomials (two terms), or trinomials (three). To find the value of an expression given a specific variable's value involves substituting that value into the equation for calculation purposes.