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Coolmath Algebra
Factoring Lesson 5 - Harder Trinomials - Undoing FOIL  (page 4 of 13)
---- This algebra lesson explains how to undo FOIL (factor) harder trinomials.

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YOUR TURN:

Factor   3x^2 - 4x - 7

Factor   5x^2 + 36x + 7

Let's make it a little harder...

Factor  2x^2 - x - 6

Our only choice for the first guy is

1 * 2 gives ( x ) ( 2x )

Since 6 is not prime, we have more choices to worry about:

1 * 6 and 2 * 3

But... which pair and in what order?

 

 

Continued on the next page
 

 The printing and distribution and/or downloading of these lessons is strictly prohibited.
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