Question

$\sqrt{5}$ is a polynomial of degree

___

Answer 1

$\sqrt{5}$ can be written as $\sqrt{5}{x}^0$. Hence, it is a polynomial of degree zero.
Or, $\sqrt{5}$ is a constant polynomial, and the degree of the constant polynomial is zero.
$\Rightarrow$ degree of $\sqrt{5}$ is zero.