Write the degree of the following polynomials
$11-2 y^{2}$
If $x+y=12$ and $x y=27,$ find the value of $x^{3}+y^{3}$
Find the zeroes of the polynomial in each of the following:
$q(x)=2 x-7$
By using the factor theorem, show that $(x-3)$ is a factor of the polynomial $12 x^{3}-31 x^{2}-18 x+9$ and then factorise $12 x^{3}-31 x^{2}-18 x+9$
$(5 x+3)(5 x-3)=\ldots \ldots . .$