What is the polynomial of 3,4

The degree of a polynomial is the highest power of x in its expression. Constant (non-zero) polynomials, linear polynomials, quadratics, cubics and quartics are polynomials of degree 0, 1, 2, 3 and 4 respectively. The function f (x) = 0 is also a polynomial, but we say that its degree is 'undefined'.