Dividing $p(x)=x^{2}+12 x+36$ by $(x+5)$ the remainder is.......

Factorise the following quadratic polynomials by splitting the middle term

$x^{2}+2 x-143$

Find the following product :

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

The value of $249^{2}-248^{2}$ is

Write the following cubes in expanded form

$(2 a-5 b)^{3}$

Factorise

$16 x^{2}-40 x y+25 y^{2}$