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October 1, 2014

October 1, 2014

Posted by **Jenna** on Wednesday, December 19, 2012 at 7:47pm.

- Algebra 2 -
**Reiny**, Wednesday, December 19, 2012 at 10:04pmI will assume you mean:

9/(x-4) - 5(x+4)

LCD is (x-4)(x+4)

= (9(x+4) - 5(x-4))/((x+4)(x-4)

= (9x + 36 - 5x + 20)/(x^2 - 16)

= (4x + 56)/(x^2 - 16)

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