Expression of the form \(A_{n}x^{n}+A_{n-1}x^{n-1}+A_{n-2}x^{n-2}+…+A_{1}x+A_{0}\) where

*n*is the degree of the expression.- The values A
of the preceding expression are called the coefficients of the polynomial expression or the polynomial._{n} - A first-degree polynomial expression is a linear polynomial.
- A second-degree polynomial expression is also called a quadratic polynomial.

### Examples

- The expression \({x}^{2}\)+ 3
*x*+ 1 is a second-degree polynomial expression. - The expression \({x}^{4}\)– 81 is a fourth-degree polynomial expression.