3/x - 5/ x+2 =?

Anton, for this kind of problem you have to use parentheses, to avoid double reading!!

So, if second denominator is "x + 2" , then 3/x - 5/(x+2) ....

3 5

—— – ———— =

x x + 2

the LCD is x(x + 2)

3(x + 2) 5x

————— – ————— =

x(x + 2) x(x + 2)

3x + 6 – 5x

—————— =

x^{2} + 2x

** 6 – 2x **

** ————— **

** x ^{2}**

**+ 2x**

## Comments

-2/x + 2/1 = -2/x + 2x/x = (2x-2)/x, NOT 0!