The notion of **multinomial** It is used in the field of **algebra** to refer to a **expression** containing **two or more terms**. To understand its meaning, therefore, one must first know what the **algebra** and what are your **expressions**.

The branch of the **math** dedicated to **study of abstract structures**. In these structures, we resort to **signs**, **letters** and **numbers** for the **generalization of arithmetic operations**.

While the **arithmetic** revolves around numbers and fundamental operations, algebra adds letters to develop the representation of **unknowns** (which are quantities that are unknown) and **parameters** (which can be coefficients or variables). In this framework, the expressions that are formed are called **algebraic formulas**.

Returning to the idea of a multinomial, it is a quantity that is expressed by **two or more** **terms** in the same formula. A **algebraic term**Meanwhile, it is a product of factors that is represented by letters and numbers.

When all the terms are integers and rational and are joined by the minus signs ( **–** ) or more ( **+** ), the multinomial is called **polynomial**. That is why it can be said that a polynomial is a specific type of multinomial.

It is important to differentiate between multinomials, **monomials** and the **binomials**. While multinomials have several terms, monomials only have a single term. A binomial, on the other hand, is an expression consisting of two algebraic terms related by minus or plus signs.

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