What is a mathematical that does not include an equal or inequality sign?

A mathematical expression that does not include an equal or inequality sign is an algebraic expression, such as (3x + 5) or (2a^2 - 4b + 7). These expressions consist of numbers, variables, and operations (like addition and multiplication) but do not assert any relationship or comparison between quantities. They can be simplified or evaluated but do not represent a statement that can be classified as true or false.