Cool math fractal

math image

math image

pre-algebra help lessonsalgebra help lessonsprecalculus / calculus help lessonsmath anxiety survival guidegeometry math artmath and jigsaw puzzlesCoolmath booksother math stuff
math help lessonsmath practice problemsmath gamesmath dictionarygeometry trigonometry reference area
teacher's areaparent's areaCoolmath 4 kidsSpike's Game ZoneFinance FREAKTotally Stressed OutScience Monster
Coolmath Algebra
Factoring Lesson 7 - Factor by Grouping  (page 1 of 3)
---- This algebra lesson explains how to factor by grouping.

math image
Now available: Coolmath Algebra books! Part 1, Part 2 and Part 3 covering the Algebra you need from Algebra 1 through Precalculus Algebra (Beginning Algebra through College Algebra)

other Coolmath Books: Coolmath Precalculus Review (the math you really need to survive Calculus 1) and Math Survival Guide (How to conquer math and deal with math anxiety)
line
Graphing Calculator Scientific Calculator << a new window will open for these
line
Something like this will pop up on you if you go on to take Calculus... Other than that, you probably won't see it anywhere.

Let's start out very simply...

Factor these:

5w + 3xw = ?

5y^2 + 3xy^2 = ?

5k^3 + 3xk^3 = ?

Now, can you do these?

5 ( blob ) + 3x ( blob ) = ?

5 ( w + 2 ) + 3x ( w + 2 ) = ?
             arrow
This type of guy will show up half way through this process... You just did the last step of factoring by grouping. Aren't you thrilled?

Here are some more last-step guys:

2w ( x + 5 ) + 7 ( x + 5 ) = ( x + 5 ) ( 2w + 7 ) ... factor the ( x + 5 ) blob out

x^2 ( y - 3 ) - 8 ( y - 3 ) = ( y - 3 ) ( x - 8 ) ... factor the ( y - 3 ) blob out

Continued on the next page
 

 The printing and distribution and/or downloading of these lessons is strictly prohibited.
line
Graphing Calculator Scientific Calculator << a new window will open for these
line

.....:::::::::::::::  HELP SUPPORT COOLMATH  :::::::::::::::.....
:::::::  link to us   :::::::   advertise with us  :::::::  why we have ads  :::::::

Thanks for visiting Coolmath.com
© 1997-2010 Coolmath.com, Inc.