The Total solution for NCERT class 6-12
(a- 3b)3 + (3b – c)3 + (c – a)3∵ a – 3b+ 3b – c + c – a = 0∴ (a – 3b)3 + (3b – c)3 + (c – a)3= 3(a – 3b) (3b – c) (c – a) {∵ a3 + b3 + c3 =3abc if a + b + c = 0}