Question

Пожалуйстааааааа.Упростите

Answer 1

1/(x²+xy) + 1/(xy+y²) = 1/x(x+y) + 1/y(x+y) = (y + x)/(xy(x+y)) = 1/(xy)

1/(x² - xy) - 1/(xy - y²) = 1/(x(x-y)) - 1/(y(x-y)) = (y-x)/(xy(x-y)) = -1/(xy)