Answer:
The correct option is 2.
Step-by-step explanation:
The given polynomial is
[tex]3x^4-9x^3-3x^2+6[/tex]
In a polynomial, the highest degrees of its individual terms with non-zero coefficients is called degree of a polynomial.
The degrees of [tex]3x^4,-9x^3, -3x^2,6[/tex] are 4, 3, 2, 0 respectively.
In the given polynomial, the highest degree of its monomial is 4.
We can say that the given polynomial is 4th degree polynomial.
Therefore the correct option is 2.
