Engr. Ronald
Favorite Answer
....1..........1
------- + -------
....x..........y..........xy
---------------------- x ----------
...x.........y............xy
------- - -------
...y.........x
...y + x
=--------------
...x^2 - y^2
......x + y
=------------------
...(x + y)(x - y)
.......1
=------------ answer//
....x - y
=
Ling Ling
1/(x-y)
?
for this issue you are able to desire to get a user-friendly denominator so for (x/y - y/x) situations each and every by ability of xy and you get (x^2 - y^2 / xy ) for (a million/y + a million/x) you do a similar ingredient and get (x+y /xy) so now you have (x^2 - y^2 / xy) / (x+y/xy) once you divide you are able to turn the (x + y/xy) and multiply so it particularly is : (x^2 - y^2)(xy) / (xy)(x+y) the xy cancels out so which you have x^2-y^2 / x+y x^2-y^2 factors out to be (x-y)(x+y) / (x+y) x+y cancels out and you have answer: x-y
Como
y + x
---------
xy
----------
x ² - y ²
----------
xy
x + y
-----------
x ² - y ²
1
---------
x - y