Expand

$(x+5 y)(x-5 y)$

Expand the following:

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

Write the degree of each of the following polynomials

$8 x^{5}+3 x^{2}-4 x+7$

Find the value of the polynomial $x^{2}-7 x+12$ at.

$x=4$

Find the zeroes of the polynomial:

$p(x)=(x-2)^{2}-(x+2)^{2}$

With the help of the remainder theorem, find the remainder when the polynomial $x^{3}+x^{2}-26 x+24$ is divided by each of the following divisors

$x-1$