Factoring Polynomial Equations - YourTeacher.com - Algebra Help

For a complete lesson on factoring polynomial equations, go to http://www.yourteacher.com - 1000+ online math lessons featuring a personal math teacher inside every lesson! In this lesson, students learn that the first step to solving polynomial equations is to set the given equation equal to zero, and the next step is to factor. However, when factoring, always check for a Greatest Common Factor. If the Greatest Common Factor is a number, divide both sides of the equation by the number. If the Greatest Common Factor contains a variable, factor it out, because the variable that factors out will provide another solution to the equation.

Category:

Education

Tags:

• polynomial
• equations
• GCF
• greatest
• common
• factor
• solving
• solve
• quadratic
• how

[isaac5909]

Thumbs up if u watch this when ur finals is near.

[WTCorn]

At least this guy explains what he is doing and gives information why. My teacher justs piles worksheets on my desk and says "Do It."

[shizzyluvmusic]

@Pein0666 oh ok thanks :)

[Pein0666]

@shizzyluvmusic

Do you know how to FOIL? Look it up. If you multiply the third line together, you'll get the second line, so the third line is really just a simplified (factored) version of the second.

[shizzyluvmusic]

Didn't get the 3rd line

[TheAndyCao]

@rhbecky Its one of the sets of factors you can make to get 4, like 4x1, 2x2. However you need a set that'll add up to -5x. You get -1x-4 because if you add -1+-4, you'll get -5! (the -5x) Hope this helps :)sorry if its confusing

[tinkerliker]

To confusing. Talks like a robot.

[rhbecky]

anyone else lost to where he got the -1 from?

[Sarungii]

My teacher has been teaching this for a few weeks and I didn't understand shit, then i watched this, now i know. I fucking love Youtube!

[theghost1333]

i like the lady better, she actually used different examples.... >.>

[Sokanastenev]

@isaac5909 I would if the example being used wasn't easy as shit

[jwm239]

...also a good intro to the "Zero Product Property" (e.g., the "3=0" expression, illustrating the futility of an arbitrary constant multiplied by the expressions containing "x". In other words, that poor "3" could just as well have been a "9" or a "211" or 66 2/3" or anything at all...