Find the greatest common divisord(x) of
f(x) = x^5 − 2x^4 − 3x^3 − 15x^2 + 10x + 25
and
g(x) = x^4 − 6x^2 − 24^x − 35

using the polynomial long division
f(x) / g (x)
i ended up with 3x^3 + 135 x^2 513x 815
couldn't factorise further !

the step after that
x^4 − 6x^2 − 24^x − 35 / 3x^3 + 135 x^2 513x 815
and the answer was 13275x^2 53578x+9150
but I don't know what should I do after that to get the gcd ,
and I'm not sure if my work is alright ..
any help ?
thnx
