Question

Which expression is a monomial?

A) 13.x² + 2xy - 4
B) 5x + 3
C) 1
D) 2% + 4

Answer 1

The expression that is a monomial is C) 1, as it has only one term and it's a constant.

Step-by-step explanation:

The expression that is a monomial is C) 1. A monomial is a mathematical expression that consists of only one term. It can be a constant, a variable, or a product of constants and variables that are raised to non-negative integer powers. The options provided are:

• A) 13.x² + 2xy - 4: This is a polynomial with three terms.
• B) 5x + 3: This is a binomial with two terms.
• C) 1: This is a monomial because it has only one term and it's a constant.
• D) 2% + 4: This contains a percentage and is not written in proper algebraic form, so it cannot be considered a monomial.