Cool math Algebra Help Lessons: Factoring Polynomials

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Coolmath Algebra
Factoring Lesson 5 - Harder Trinomials - Undoing FOIL (page 6 of 13)
---- This algebra lesson explains how to undo FOIL (factor) harder trinomials.

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Now that we have the numbers, lock them in like this:

First: 1 * 2 and Last: 2 * 3 gives ( x - 2 ) ( 2x + 3 ) ... the inner terms give - 4x and the outer terms give 3x

So,

Check with FOIL!

YOUR TURN:

Factor

Here's another one:

Factor

Since the last guy is prime, let's lock him down first:

Continued on the next page

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