Question

If x+y+z is not equal to zero and x3 + y3+z3 = 3 xyz , then 2x + 4y - 6z is?

Answer 1

Hey....

If X + Y + Z is not equal to zero then

${x}^{3} + {y}^{3} + {z}^{3} - 3xyz$

is not equal to zero.

But this contradicts the second information.

Hence, only possible case is when x = y = z = infinity.

This is not practically possible.

Hence, the answer most probably should be undefined.