GED Math Practice Test

What is a monomial?

1. An algebraic expression consisting of a single term that does not require any addition or subtraction

2. Any equation involving two unknowns

3. A polynomial with multiple different terms

4. Two or more terms that have like variables

The correct answer is: An algebraic expression consisting of a single term that does not require any addition or subtraction

A monomial is defined as an algebraic expression that consists of a single term, which means it cannot have addition or subtraction within it. This term may contain numbers, variables, or both multiplied together, but it lacks the complexity introduced by multiple terms combined through addition or subtraction. In contrast, other options describe concepts that do not align with the definition of a monomial. For instance, any equation involving two unknowns refers to a general form of equations that can be more complex and may not necessarily be a single term. A polynomial with multiple different terms suggests the presence of addition and/or subtraction between those terms, which moves away from the singularity required for a monomial. Lastly, having two or more terms that include like variables describes a specific scenario related to polynomials, specifically a binomial or a polynomial with multiple terms, again diverging from the single-term criterion of a monomial. Therefore, the definition you chose is correct, as it accurately captures the essence of a monomial.