Question

(a-3b)^3+(3b-c)^3+(c-a)^3

Answer 1

if x+y+z=0
x=a-3b
y=3b-c
z=c-a
a-3b+3b-c+c-a
=0
then x+y+z =3xyz
3(a-3b)(3b-c)(c-a)

Answer 2

HEYA!!

Your answer is it the attachment.....

HOPE IT HELPS!!!!