Question

Verify that :2x3+2y3+2z3-6
xyz = (x + y + z)[(x - y)² + (y - z)+ (z - x)?]​

Answer 1

Answer:

it can't be verified it can be verified only if it is

(x+y+z)((x-y)^2+(y-z) ^2+(z-x) ^2)