Question

I'll mark as BRAINLIST ,if correct​

Answer 1

Answer:

0

Step-by-step explanation:

x/y + y/x = (-1)

or, x²+y² = -xy

or, x²+y²+xy = 0

∴(x³-y³) = (x-y) (x²+y²+xy) = (x-y) ×0 = 0