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April 19, 2014

Posted by **Sabrina** on Friday, September 24, 2010 at 5:34pm.

- Math -
**Sabrina**, Friday, September 24, 2010 at 5:58pmI cannot figure this out! I know that the top is essentially the same as the bottom. SO what do I do?

(r^2-64)/(r+8)^2=

(r^2-64)/(r^2+64)=

0 ?

- Math -
**Reiny**, Friday, September 24, 2010 at 6:13pmnot correct

do it this way ...

(r^2-64)/(r+8)^2

= (r+8)(r-8)/[(r+8)(r+8)]

= (r-8)/(r+8)

- Math -
**Sabrina**, Friday, September 24, 2010 at 6:32pmGeez. Thank you so much.

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