# Would anyone be kind enough to help me with my math homework?

• May 13th 2009, 05:30 PM
GoldenSimmer
Would anyone be kind enough to help me with my math homework?
Would anyone care to explain steps to these rational equations. (Please include the answers)

1) http://i43.tinypic.com/6z8xnl.jpg

2) http://i42.tinypic.com/14y02za.jpg

I would really like to know how to do these. I know it is alot of steps. (Wondering)
• May 13th 2009, 06:33 PM
yeongil
You state that these are equations, but I don't see equal signs on either pic. Or did you need to simplify the rational expressions?

01
• May 13th 2009, 08:10 PM
A Beautiful Mind
I'm pretty sure it's just finding the domain. ;)

1.
$\displaystyle 10/x+2$
$\displaystyle x\neq -2$
$\displaystyle ( -\infty, -2) \bigcup (-2, \infty)$

$\displaystyle 9/x^2-4$
$\displaystyle x\neq 2, x\neq -2$
$\displaystyle (- \infty, -2) \bigcup (-2,2) \bigcup (2, \infty)$

2.
$\displaystyle x+3/x^2-9 - 5$
$\displaystyle x\neq 3, x\neq -3$
$\displaystyle (- \infty, -3) \bigcup (-3,3) \bigcup (3, \infty)$

$\displaystyle 6/x-3$
$\displaystyle x\neq 3$
$\displaystyle (- \infty, 3) \bigcup (3, \infty)$