Hi
I am having trouble with simplifying this:
1/x+2 - 1/x+4
I get the following:
2/x^2+6x+8
It just does not seem right can anyone see where I might be going wrong ?
Thanks
Please use brackets where they're necessary or learn some LaTeX, otherwise it can't be read.
I assume you mean $\displaystyle \displaystyle \frac{1}{x + 2} - \frac{1}{x + 4}$
$\displaystyle \displaystyle = \frac{x + 4}{(x+2)(x+4)}-\frac{x+2}{(x+2)(x+4)}$
$\displaystyle \displaystyle = \frac{x+4 - (x+2)}{(x+2)(x+4)}$
$\displaystyle \displaystyle = \frac{2}{(x+2)(x+4)}$
$\displaystyle \displaystyle = \frac{2}{x^2 + 6x + 8}$.
So your answer is correct.
Rather that reading about LaTex, I suggest using this resource:
Online LaTeX Equation Editor
in which you can instantly see what your output will be, and then copy/paste into MHF.