Question

Combine as indicated by the signs. Write variables alphabetically in your answer.

Answer 1

Answer:

- 4xy / (x+y) (x-y)

Step-by-step explanation:

Answer 2

Answer:

$\frac{-4xy}{x^2-y^2}$ is the answer

Step-by-step explanation:

$\frac{x-y}{x+y} -\frac{x+y}{x-y}$

making denominator same

$\frac{(x-y)(x-y)}{(x+y)(x-y)} -\frac{(x+y)(x+y)}{(x-y)(x+y)}$

$\frac{(x^2+y^2-2xy)}{x^2-y^2} -\frac{(x^2+y^2+2xy)}{x^2-y^2}\\\frac{x^2+y^2-2xy-x^2-y^2-2xy}{x^2-y^2}\\\frac{-4xy}{x^2-y^2}$