The function is $\"\"$ .

The general form of polynomial function is $\"\"$ ,

where $\"\"$ are real numbers and $\"\"$ is a non-negative integer.

The power of variable $\"\"$ is a non-negative integer, hence it is a polynomial function

The degree of the polynomial function is the largest power of $\"\"$ that appearsto be degree $\"\"$ .

$\"\"$ is a polynomial function of degree $\"\"$ .

The function $\"\"$ is a polynomial function and degree of the $\"\"$ is $\"\"$ .