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$(5 x-7 y-z)^{2}$
$25 x^{2}+49 y^{2}+z^{2}-70 x y+14 y z-10 z x$
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
$x+6$
Write the degree of each of the following polynomials
$x^{3}-3\left(x^{2}\right)^{4}-15$
Find the value of the polynomial $3 x^{3}-4 x^{2}+7 x-5,$ when $x=3$
Without actually calculating the cubes, find the value of :
$(0.2)^{3}-(0.3)^{3}+(0.1)^{3}$
Factorise the following:
$4 x^{2}+20 x+25$
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