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July 22, 2014

July 22, 2014

Posted by **coried** on Friday, July 24, 2009 at 11:34pm.

(49-x^2)^1/2 + 3x^2(49-x^2)^-1/2

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49 - x^2

- College Algebra -
**Reiny**, Saturday, July 25, 2009 at 7:21amcommon factor of (49-x^2)^(-1/2) at the top

= (49-x^2)^(-1/2)[49-x^2 + 3x^2]/(49-x^2)

= (49 + 2x^2)/(49 - x^2)^(3/2)

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