- It is quadratic polynomial.
- A quadratic polynomial has 2 as its degree.
- It is monomial.
- A monomial consists of one term.
- It is constant or zero polynomial.
- When a term doesn't have any degree it is termed as zero or constant polynomial.
- It is also a monomial.
- Because it consists of only one term.
- It is constant or zero polynomial.
- Because it doesn't have any power.
- It is again a monomial.
- It is having only one term that is -9.