Find the zeroes of the polynomial:
$p(x)=(x-2)^{2}-(x+2)^{2}$
$1$
$-1$
$-2$
$0$
Factorise the following:
$9 x^{2}-12 x+4$
Show that :
$2 x-3$ is a factor of $x+2 x^{3}-9 x^{2}+12$
Factorise $: 49 x^{2}-121$
The degree of polynomial $7 x^{5}-4 x^{4}+2\left(x^{3}\right)^{2}-x^{2}+35$ is $\ldots \ldots \ldots$
Without actually calculating the cubes, find the value of each of the following
$(21)^{3}+(15)^{3}+(-36)^{3}$