Question

Ejercicio 127 resuelto del álgebra de Baldor numero 6 x+y/x-y + x-y/x+y

Answer 1

(x + y)/(x - y) + (x - y)/(x + y)
((x + y)(x + y) + (x - y)(x - y))/(x - y)(x + y)
(x² + xy + yx + y² + x² - yx - yx + y²)/(x² + yx - yx - y²)
(x² + 2xy + y² + x² - 2xy + y²)/(x² - y²)
(2x² + 2y²)/(x² - y²)