Computer Forums small math problem

 07-05-2007, 12:12 AM #11 Daemon Poster     Join Date: Jan 2007 Posts: 1,469 Re: small math problem When there is no greatest common factor, yes. __________________ __________________ Linux > Windows
 07-05-2007, 12:23 AM #12 Daemon Poster     Join Date: Aug 2006 Posts: 1,030 Re: small math problem i just took a factoring class in college for a math requirement. Ill do the problem and see what i get, then take a pic of it. __________________ __________________ AMD 64 X2 Dual Core 3800+ Asus M2N-SLI Deluxe Corsair CM2 X 512 x 2 A-6400 Nvidia 7600 GS 256 MB PCI-E 16x
 07-05-2007, 01:01 AM #13 Daemon Poster     Join Date: Nov 2005 Posts: 671 Re: small math problem ok thanks __________________
 07-05-2007, 01:09 AM #14 Fully Optimized     Join Date: Sep 2006 Posts: 2,793 Re: small math problem There's a whole class on factoring??? Anyway... from the original problem it's a trinomial square, so that factors to (a^2-1)(a^2-1) hence a^4 - a^2 - a^2 + 1. Remember FOIL. Those two are a difference of squares so you get (a+1)(a-1)(a+1)(a-1) Pretty easy once you get used to it. __________________
 07-05-2007, 01:16 AM #15 Daemon Poster     Join Date: Nov 2005 Posts: 671 Re: small math problem ok thanks guys i have a test tomorrow and i didnt quite get this problem so that why im asking. __________________
 07-05-2007, 05:58 PM #16 Daemon Poster     Join Date: Feb 2006 Posts: 982 Re: small math problem Good luck on your test! __________________ Rig -- Emachines T5026, 3.06ghz P4, 300W Bestec PSU, 160 sata hd, 512mb dual channel 3200 ram @ 3-3-5-8, ATI Radeon 9250 pci, dual layer 16x dvd+/-rw.
 07-05-2007, 11:29 PM #17 Daemon Poster     Join Date: Nov 2005 Posts: 671 Re: small math problem yay i got a 92% on my test i got 2 problems wrong though __________________
07-06-2007, 01:35 AM   #18
Daemon Poster

Join Date: Aug 2006
Posts: 1,030
Re: small math problem

Quote:
 Originally Posted by D-Lew There's a whole class on factoring??? Anyway... from the original problem it's a trinomial square, so that factors to (a^2-1)(a^2-1) hence a^4 - a^2 - a^2 + 1. Remember FOIL. Those two are a difference of squares so you get (a+1)(a-1)(a+1)(a-1) Pretty easy once you get used to it.
Yes i tested into college algebra and we spent 2-3 week on all kinds of factoring problems.(sum of cubes, differences of square, sum of squares of 2 consecutive integers, Quadratic Equations, Binomials and trinomials, few other don't remember all of them )Also sorry i did not post the answer to the problem, but the correct way is what D-lew has posted. Nice job on the math test btw.
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AMD 64 X2 Dual Core 3800+
Asus M2N-SLI Deluxe
Corsair CM2 X 512 x 2 A-6400
Nvidia 7600 GS 256 MB PCI-E 16x