Need Help on subtracting rational expression.

Question

anonymous · Answer

$$\frac{ 2x }{ x^2-1 } - \frac{ 1 }{ x^2 }$$

anonymous · Answer

I know that I have to first factor the denominators.
$$\frac{ 2x }{ (x-1)(x+1) } - \frac{ 1 }{ x(x) }$$
I don't really know how to factor the denominator in the second term: 1 over x squared

anonymous · Answer

I also know that the LCD is $$(x-1)(x+1)$$.
But I don't know how to make that LCD for $$\frac{ 1 }{ x^2 }$$

anonymous · Answer

@dtan5457 @Data_LG2 @poopsiedoodle Can any one of you help me?

anonymous · Answer

@Preetha @Prosper2win @Ashleyisakitty

anonymous · Answer

you can use $\sf x^2(x+1)(x-1)$ as the common denominator.

anonymous · Answer

Oh yeah ok. THANK YOU SO MUCH!! That was all I needed. I guess I can't do math late at night.

anonymous · Answer

I mean I can't think straight. I do very well in math tho anyways but today I am just exceptionally tired

anonymous · Answer

lol don't worry I understand ^_^
if you have more questions about this, don't hesitate to ask.
can you manage now from here?

anonymous · Answer

Yeah I can. :)

anonymous · Answer

okay, goodluck :)