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Factoring by Grouping - YourTeacher.com - Algebra Help

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Uploaded by on Jan 21, 2008

For a complete lesson on factoring by grouping, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn to factor a polynomial that has four terms by grouping the first two terms together and the last two terms together, then factoring out the Greatest Common Factor from each group. For example, to factor ax -- ay + cx -- cy, the first step is to factor out an "a" from the first two terms, and factor out a "c" from the last two terms, to get a(x -- y) + c(x -- y). The problem can now be thought of as two terms, each with a Greatest Common Factor of (x -- y), so an (x -- y) can be factored out, to get (x -- y)(a + c).

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  • likes, 13 dislikes

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  • He's like Jesus but with math

  • HAY. SCROLL BACK UP AND LEARN.

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  • i know it but im to afraid to ask questions thumbs up if your the same way

  • monotone. snoreeeeeee.

    but i learned how to do this so it's okay

  • thumbs up if you have a maths test tomorow

  • T h a n k y o u . <3

  • straight up, thirteen years of my life wasted in school on what i learned in four of these two minute videos.

  • thanks!

    

  • Wait what If you can't find the GFC In one of the terms after you split the equation?

  • My teacher is a fucking idiot, she spent 3 classes explaining this, which was gay as

    Fuck so I dident learn anything, so I searched how to do this and I found this......I learned 3 classes worth of work in 2 min, thank you sir!

  • I believe the answer can still be factored, if I'm wrong please correct me, wouldn't (x^2+4) become (X+2)(X-2), so the complete answer would be (X+2)(X+2)(X-2).

  • your saved my life ... in the exam

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