simplifying (X^2-9)/(x^2+x) divided by (3-x)/(x^2-1)

iTRY

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Feb 20, 2007
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hi. I need help simplifying:

(X^2-9)/(x^2+x) divided by (3-x)/(x^2-1)

I get the equation to simplify to ((x+3)(x+1)(x+1))/(x^2+x) ... but what do I do next?
 
Try factoring and cancelling.

\(\displaystyle \L\\\frac{(x^{2}-9)}{(x^{2}+x)}\cdot\frac{(x^{2}-1)}{(3-x)}\)

Factor the numerators and denominators, cancel. It'll reduce down. Be careful of the 3-x as opposed to x-3.
 
iTRY said:
hi. I need help simplifying:
(X^2-9)/(x^2+x) divided by (3-x)/(x^2-1)
I get the equation to simplify to ((x+3)(x+1)(x+1))/(x^2+x) ... but what do I do next?
You're doing something wrong: the (x+1)'s should cancel out;
how did you get 'em both in the numerator?
AND: are you sure of (3-x)? Is that not (x-3)?
 
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