The answer to the problem is 17
Answer:
4x+12
Step-by-step explanation:

Answer:
(y - x)/(y + x)
Step-by-step explanation:
(1/x - 1/y)/(1/x + 1/y) =
= (1/x - 1/y)/(1/x + 1/y) × (xy)/(xy)
= (y - x)/(y + x)
ANSWER

EXPLANATION
The given expression is

The middle radical contains a perfect square.



Note that:

