[Blindmath] Algebraic Long Division

Nimer nimerjaber1 at gmail.com
Tue Mar 17 23:03:52 CDT 2009


Yes, I also use a spreadsheet, and find itto be helpful. Here are some 
instructions.

Synthetic Division using EXCEL

Take divisor set it equal to zero and solve
A1 put the zero from the divisor
B1 through as long as you need put coefficients of the dividend
Take value from B1 and drop it down to B3
Take A1 multiply it to B3 and put in C2
Add C1 and C2 and write answer in C3
Take A1 multiply to C3 and write in D2
Ass D1 and D2 and write answer in D3
Repeat steps as needed
When nothing else is in row 1 you are done
The last number in row 3 is the remainder
Write answer as a polynomial
Example 1
Problem done on sheet 1 x^2+6x+5 divided by x+1
Answer x+5
Example 2
Problem done on sheet 2 2x^3+3x-5 divided by x+2 (I don’t know how this 
one will work but thought I would give you one that needed place holders)
Answer 2x^2-1x+2 +-9/(x+2)

Hope this helps, questions let me know.

Nimer J

"every time I say something they find hard to hear
they chalk it up to my anger
and never to their own fear"
Ani Difranco: I'm Not A Pretty Girl 1995

Nimer M. Jaber

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Pranav Lal wrote:
> Hi all,
>
> One way I have found for problems like long division is to use a
> spreadsheet. The spreadsheet duplicates a taler frame in some ways. The good
> thing is one can add or delete rows as required. I am not sure that this
> will help in the current scenario but it could be worth a try.
>
> Pranav
>
> -----Original Message-----
> From: blindmath-bounces at nfbnet.org [mailto:blindmath-bounces at nfbnet.org] On
> Behalf Of Susan Jolly
> Sent: Tuesday, March 17, 2009 10:05 PM
> To: blindmath at nfbnet.org
> Subject: [Blindmath] Algebraic Long Division
>
> I'm sitting here shaking my head in disbelief on reading "my professor asked
> me to do sets of long division
> containing variables." Spatial arithmetic and especially long division is
> the worst case scenario for doing math in braille since you have to keep
> going back and forth. And who does long division in college any more?  Let
> alone algebraic long division or polynomial long division like you are
> doing. What a mess!
>
> I agree this is not a situation with a good solution. LaTeX wouldn't be of
> much help.  Hopefully you will make it through somehow and never have to do
> this again!
>
> It also sounds like your professor is difficult to deal with.  I'd think
> that if you could sit down with the professor and prove that you understand
> the concept of long division, there wouldn't be any need to do a large
> number of similar problems.
>
> Best wishes,
> SusanJ
>
>
>
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