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- anonymous

[8.02] Determine whether the following polynomials can be factored by grouping. If so, factor the polynomials showing all work. If not, explain why this method will not work.
a.4x2 + 12xy + 2x + 2y
b.3m2 + 6mn + 7m + 14n

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- anonymous

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- anonymous

The first one is factored by grouping, I am confused on the 2nd. :D

- anonymous

I think...HELP!!!

- anonymous

yes it can
take out the 3m from the first part and 7 from the second

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- anonymous

Ok, thx. :)

- anonymous

you get 3m(m+2n)+7(m+2n)

- anonymous

then you can simplify it as (3m+7)(m+2n)

- anonymous

good enough?

- anonymous

Hmm...yes, can you show me the first one to make sure?

- anonymous

a.4x2 + 12xy + 2x + 2y

- anonymous

yeah....im not so sure about the first one...i dont think you can do it by group factoring because it can't be factored unless done by completing the square or using the quadratic formula

- anonymous

wait...you did learn about breaking it up into 3 and 1 or 2 and 2 right?

- anonymous

Yes, I really don't understand this!!! I hate math and science. :(

- anonymous

lol, I'm not a big fan either, but im pretty sure you cant do the first one, let me look it up

- anonymous

yeah..you can't

- anonymous

Oh, wow, lol! Then what do I say?

- anonymous

they will all have to become a diff of squares to be solvable for the first one

- anonymous

A. cannot be factored by grouping
B. can

- anonymous

Oh, lol! Thx!! :D totally think this stuff is hard!!

- anonymous

Now I need the other one aboutr Jose. :)

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