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![[Post New]](/templates/default/images/icon_minipost_new.gif) 17 Feb 2008 15:24:56 IST
Accepted Answer [?]
![[Up]](/templates/default/images/icon_up.gif "[Up]")
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divide by numerator and denominator by x2.
Express the denominator as ( x - 4/x ) 2+ 8 .
Substitute ( x - 4/x ) =t
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this reply: 5 points
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