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help with adding and subtracting rationals?

Posted by admin on August 28th, 2010

7d-2/dsquared+2d-8 + 4/d+4 – d/d-2

looks confusing.. so i typed it up on paint.

http://i187.photobucket.com/albums/x37/too_much_time/math.jpg

thanks
is the answer
D squared + 7D + 6/ (d+4)(d-2)

??

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