An __________ signifies a combination of numbers, variables, and operation symbols.

An algebraic expression signifies a combination of numbers, variables, and operation symbols. Algebraic expressions can represent a wide range of quantities and relationships in mathematics. They typically include elements such as coefficients (the numerical part), variables (like x or y), constants (specific fixed values), and operators (like addition, subtraction, multiplication, and division).

For example, the expression $3x + 5$ involves a variable $x$, the coefficient 3, the constant 5, and the operation of addition. Algebraic expressions are foundational in algebra and are used to formulate equations that can be solved to find the values of variables. This concept is essential for problem-solving in various areas of mathematics, science, and engineering.