Question

if x+y+z=0,show that x^3

Answer 1

$x + y + z = 0 \\ \\ x = - y - z \\ \\ x^3 = (- y - z)^3 = - y^3 - 3y^2z - 3yz^2 - z^3$

Answer 2

final ans=
3x+3y+3z=3xyz