Polynomial/Factoring Review Pt2

Backward

Finding factors

ex.

 12- 1*12,  2*6,  3*8,  3*4

24- 1*24,  2*12,  3*8, 4*6

x²- (x)(x)

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Prime Factorization

ex.          64   

                               

                   8 * 8                                       

                                                           

         2*2*2*2*2*2   

           

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Reverse Distributive Property

Find the GCF (Greatest common factor)

ex. -64x²+112x

16x(-4x+7)


What did I do? Well lets go forward.

16x(-4x)+ 16x(7)

First -64x² Last 112x

Together it equals  -64x²+112x

Still confused? (I'm not a teacher so yes you are)

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Reverse FOIL (refer to page 1 for FOIL)

This may be rough but for a question like this you need to find two numbers when multiplied equal the last term and add together to equal the second term.

So you then  separate the question into two binomials like so.

(x+3) (x+5) You can see I took x² separated it and put the 3 on one side and the 5 on the other. Try FOIL to check your answer.

Please click this link he explains it perfectly 
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Reverse FOIL
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It will lead you to this video I timed it for this specific point but feel free to watch the entire video.

Alright guys im heading off to the grad awards I will be sure to add more this evening when I return (3 step proccess)

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The 3 step plan

Alright guys I was going to write out my notes but it seems the wonderful internet has done it for me, click the link below for a detailed explanation on how to factor a polynomial with the three step plan.

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-LINK-

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Hope this helped.

To students in New York good luck on the test ;)

New York people                                                                Us

Below I will include a link to the first page if you missed part 1 going forward 




Going Forward (part 1)