You have not provided the polynomial function, therefore, I cannot provide an exact answer.
However, I can help you with the concept.
The degree of the polynomial is determined based on the highest exponent in the equation.
For example:
x² + 2x + 3
highest exponent ........> 2
degree of polynomial ............> second
x³ + 2x⁵ + 7x⁴
highest exponent ..........> 5
degree of polynomial .........> fifth
x + 9x³
highest exponent ..........> 3
degree of polynomial ..........> third
Hope this helps :)
