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December 21, 2014

December 21, 2014

Posted by **Lucy** on Sunday, March 2, 2008 at 9:58am.

d/d^2-9 + 5/2d+6

I got as far as d/(d+3)(d-3) + 5/2(d+3) but do not know how to further simplify.

Thanks for any help given.

- Algebra II -
**Reiny**, Sunday, March 2, 2008 at 10:15amYour common denominator is 2(d+3)(d-3)

so

(2d + 5(d-3))/[2(d+3)(d-3)]

= (7d-15)/[2(d+3)(d-3)], d not equal to ±3

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