A polynomial is an expression formed from one or more terms and constants by addition, each term of which should contain a variable raised to a non-negative integer power.
Let ring (such as the real numbers, rational numbers, or integers). Now let be a natural number and be elements of . Then the function defined by:
in is said to be a polynomial function in a single variable.
, we say that is an th-degree polynomial.
We denote the set of polynomials as
Polynomial long division
Dividing a polynomial follows a process similar to long division.