Question

If a+b+c = 0, a^3 + b^3 + c^3 = 3 and a^5 + b^5 + c^5 = 10, then a^4 + b^4 + c^4 is

Answer 1

from equation 1 a=-(b+c)...now subst. that in both the second and third equations. solve simultaneously for b and c then find a using the derived equation from 1. then subst. a,b and c into the final equation to find what you are looking for

Answer 2

Thanks KBOY for your reply

I will try it