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June 12th, 2013, 09:57 AM  #1 
Newbie Joined: Jun 2013 Posts: 1 Thanks: 0  Partial Fraction help!
I hate Maths Just to clarify my position on the subject. down to business! I have this partial fraction, which I am told is different from ones I am used to, as Instead of using A and B, we also use C to solve this question! how good. here is problem 3x^32x^216x+20  (x2)(x+2) 
June 12th, 2013, 10:50 AM  #2 
Math Team Joined: Sep 2007 Posts: 2,409 Thanks: 6  Re: Partial Fraction help!
You may have misunderstood. You do not need a third constant on a fraction, but since the numerator has degree 3 while the denominator has degree 2, you should first divide to get a "mixed fraction" rather than an "improper fraction". Now there exist constants A and B such that . 
June 12th, 2013, 11:53 AM  #3 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,943 Thanks: 1132 Math Focus: Elementary mathematics and beyond  Re: Partial Fraction help! 
June 12th, 2013, 08:48 PM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,746 Thanks: 2133 
True, but you started with an extra "3" in the numerator.

June 13th, 2013, 12:38 AM  #5 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,943 Thanks: 1132 Math Focus: Elementary mathematics and beyond  Re: Partial Fraction help!
To what are you referring?

June 13th, 2013, 08:05 AM  #6 
Global Moderator Joined: Dec 2006 Posts: 20,746 Thanks: 2133 
Sorry, I should have been saying that [color=#00AA00]HallsofIvy[/color] omitted the leading "3" from the numerator of the fraction.


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