Answer :
Given:
[tex]f(x)=3x^3+2x^2-1[/tex]Polynomial:
The expression contains one or more terms with a non-zero coefficient.
It is represented as,
[tex]\begin{gathered} p(x)=a_na^n+a_{n-1}a^{n-1}+.\ldots\ldots+a_1x+a_0 \\ n\text{ is non negative integer.} \end{gathered}[/tex]The given function has non-negative powers, and all the coefficients are real.
Therefore, the given function is polynomial.
