# Math Help - Adding/ Subtracting rational expressions

1. ## Adding/ Subtracting rational expressions

I did these problems, but i am not sure if I am doing them correctly...could someone please look over a few of them? Thank you!

2. Originally Posted by aikenfan
I did these problems, but i am not sure if I am doing them correctly...could someone please look over a few of them? Thank you!
Check your work on 6 again:
$3(x - 1) \neq 3x - 1$
and
$x(x - 2) \neq x^2 + 2x$

The other problems look good.

-Dan

3. Now I get (-x^2 + 5x - 3)/ 3x

4. Originally Posted by aikenfan
Now I get (-x^2 + 5x - 3)/ 3x
Looks good!

-Dan