What context can I use each word in?
Learn when and how to use these words with these examples!
polynomial
Example
The equation x^2 + 3x - 4 is an example of a quadratic polynomial. [polynomial: noun]
Example
Polynomials can be used to model real-world phenomena, such as population growth or economic trends. [polynomials: plural noun]
expression
Example
The expression 3x + 5 represents a linear function. [expression: noun]
Example
Expressions can be simplified by combining like terms or applying the order of operations. [expressions: plural noun]
Good things to know
Which word is more common?
Expression is a more common term than polynomial in everyday language, as it is used in a broader range of contexts. However, polynomial is an important concept in algebra and calculus and is commonly used in those fields.
What’s the difference in the tone of formality between polynomial and expression?
Polynomial is a more formal term than expression, as it is a specific type of mathematical expression with a defined structure and degree. Expression is more versatile and can be used in both formal and informal contexts.