Question

x minus y cube + y - Z Cube + Z - x cube

Answer 1

$x - {y}^{3} + y - {z}^{3} + z - { x}^{3}$
$x - {x}^{3} - {y}^{3} + y - {z}^{3} + z$
$- {x}^{2} - {y}^{2} - {z}^{2}$
it's your answer

Answer 2

-x^2-y^2-z^2 that's the answer