Question

If x³ + y³ = x + y and xy = 1, then what are the possible value of x³ + y³ ?​

Answer 1

Answer:

X = 1

Y = 1

Step-by-step explanation:

1³ + 1³ = 1 + 1

XY = (1)(1) = 1

Answer 2

There can be two cases

x and y both are 1 or x and y both are -1.