Find the quotient and the remainder when $2 x^{2}-7 x-15$ is divided by

$x+1$

Factorise the following:

$9 x^{2}-12 x+3$

Factorise :

$x^{3}-6 x^{2}+11 x-6$

From the following polynomials find out which of them has $(x-1)$ as a factor

$x^{3}-7 x^{2}+14 x-8$

Find the zeroes of the polynomial in each of the following:

$h(y)=2 y$