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April 21, 2014

April 21, 2014

Posted by **Jeff** on Tuesday, March 18, 2008 at 12:53am.

x^2+2x-3/x^2-9 Divided By x^2-1/x^3-27

I put divided by in the middle to show that it is dividing two rational expressions.

- Algebra -
**drwls**, Tuesday, March 18, 2008 at 1:45amTry simplifying

x^2+2x-3/x^2-9 to (x+3)(x-1)/[(x+3)(x-3)]

= (x-1)/(x-3)

Similarly factor what you can in the x^2-1/x^3-27

and you will get some more cancellations when you do the final division.

Hint: x^3-27 can be factored, and one of its factors is (x-3). I wil leave you to figure out the other one.

- Algebra -
**Jeff**, Tuesday, March 18, 2008 at 2:19amOoo ok thanks so much, I got it :D

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