Question

Hey guys
Pls help me out!!

:)

Answer 1

1/2(x3+y3+z3)[(x3-y3)2+(y3-z3)2+(z3-x3)3]
=1x+1y+1z/2x+2y+2z[2x ka power3-2y ka power 3)+(2y ka power 3-2z ka power 3)+(3z ka power 3-3x ka power 3)] sbko calculate kr lo pahle dhyan se pdhna