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Factoring Trinomials - YourTeacher.com - Algebra Help

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Uploaded by on Apr 16, 2008

For a complete lesson on factoring trinomials, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn that a trinomial in the form x^2 + bx + c (where c is negative), such as x^2 + 6x -- 27, can be factored as the product of two binomials, in this case (x + 9)(x -- 3). The first term in each binomial comes from the factors of x^2, x and x. The second term in each binomial comes from the factors of the constant term, --27, that add to the coefficient of the middle term, +6, which in this case are +9 and --3.

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  • likes, 37 dislikes

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  • really? I have to watch a fucking advertisement for help on school. -___________________-

  • Bout damn time somebody does a good job explaining somethin,

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  • Mine doesn't add up :/

  • also for the 36 dislikes ur all just haters or for people that didn't take this video seriously

  • Wow this guy can explain this to me perfectly under a few seconds of my time then again i'm stuck with a teacher who cant explain me this in all three months incredible I really wish u are my teacher right now

  • I showed my daughter your video and she learned it in less than two days! God bless you :)

  • @hoathton ... find two numbers whose product is +21 and whose sum is -22. Two negatives multiplied give a postive. Here, 21 = -21 times -1, and their sum is ... -22 ... !

  • a good short explanation of how to 'decompose' that -15 into the requisite factors such that their sum is 2. This works when the coefficient of x^2 is 1.

  • @imphlatround I'm assuming that's why your here hahaha

  • cheers pal :)

  • I LOVE YOU no homo

  • wow best teacher I've never had!

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