Question

Please solve this question ASAP!
I'll mark as brainliest the best answer!!​

Answer 1

Answer:

Step-by-step explanation:

TAKE LCM

X^2 + Y^2

________ = -1

XY

Therefore

X^2 + Y^2 =-XY

X^2 +Y^2 +XY=0 ( EQUATION 1 )

As we know

A^3 -B^3= ( A- B ) ( A^2+B^2+AB)

THEREFORE

X^3-Y^3 = ( X-Y) ( X^2 +Y^2 +XY)

USING EQUATION 1

X^3-Y3= (X-Y) ( 0 )

THEREFORE X^3-Y3=0