Find the Degree, Leading Term, and Leading Coefficient f(x)=2x^4+4x-9 square root of x+3x^2-8

$f (x) = 2 x^{4} + 4 x - 9 \sqrt{x} + 3 x^{2} - 8$

Simplify the polynomial, then reorder it left to right starting with the highest degree term.

Move $- 9 \sqrt{x}$ .

$f (x) = 2 x^{4} + 4 x + 3 x^{2} - 9 \sqrt{x} - 8$

Move $4 x$ .

$f (x) = 2 x^{4} + 3 x^{2} + 4 x - 9 \sqrt{x} - 8$

The degree, leading term, and leading coefficient cannot be determined because $2 x^{4} + 3 x^{2} + 4 x - 9 \sqrt{x} - 8$ is not a polynomial.

Not a polynomial