Find the value of each of the following polynomials at the indicated value of variables

$p(x)=x^{2}+5 x-24$ at $x=3$

What are the possible expressions for the dimensions of a cuboid whose volume is given as $\left(2 x^{3}+15 x^{2}+33 x+20\right)$ cubic units? $(x>0)$

Find the quotient and the remainder when $x^{3}+x^{2}-10 x+8$ is divided by

$x-1$

Expand

$(2 a+3 b)^{2}$

Find the following product :

$(2 x-y+3 z)\left(4 x^{2}+y^{2}+9 z^{2}+2 x y+3 y z-6 x z\right)$