Write the coefficients of $x^{2}$ in each of the following polynomials

$\sqrt{5} x^{2}-7 x+13$

Factorise each of the following

$64 x^{3}+125 y^{3}+240 x^{2} y+300 x y^{2}$

Find $p(0), p(1), p(-2)$ for the following polynomials:

$p(y)=(y+2)(y-2)$

Classify the following polynomials as polynomials in one variable, two variables etc.

$x y+y z+z x$

Classify the following as linear, quadratic or cubic polynomial

$x^{2}-9 x+14$