Find the zero of the polynomial $p(x)=5 x-8$.

Divide $p(x)=21+10 x+x^{2}$ by $g(x)=2+x$ and find the quotient and the remainder.

Factorise $6x^{3}-23x^{2}+29x-12$.

Write whether the following statement is True or False. Justify your answer.
$\frac{1}{\sqrt{5}} x^{\frac{1}{2}} + 1$ is a polynomial.

Degree of the polynomial $4 x^{4}+0 x^{3}+0 x^{5}+5 x+7$ is

The degree of the zero polynomial is