Question

a^3-b^3+c^3-3ab= 1/2(a+b+c)[(a-b)^2+(b-c)^2+(c-a)^2]

Answer 1

I think it would help you

Answer 2

ur question is rong......but if this is the question then it will be proved like this....and answer will be a³+b³+c³ -3abc