Question

if x/y + y/x = -1 find x^3 - y^3

Answer 1

Step-by-step explanation:

$( \frac{x}{y} + \frac{y}{x} ) = - 1 \\ \\( {x}^{2} + {y}^{2} + xy) = 0 \\ \\ {x}^{3} - {y}^{3} = (x - y)( {x}^{2} + xy + {y}^{2} ) \\ \\ = (x - y)(0) \\ \\ = 0.$

Answer 2

Answer:

half answer is in another photo

Step-by-step explanation:

Hope it gonna help you so much