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- PoofyPenguin

Something's wrong...could someone please check my work? Attachments to come...

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- PoofyPenguin

Something's wrong...could someone please check my work? Attachments to come...

- chestercat

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- PoofyPenguin

Here's the question:

- PoofyPenguin

Here's the work that I've done:

- PoofyPenguin

Only one of the part's is wrong, but I'm not sure which one or what I did wrong...

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- PoofyPenguin

Could anyone help me?

- anonymous

Yes I am checking it.

- PoofyPenguin

Thanks so much! I've been waiting all night! :D

- anonymous

There will be -40x^3 ? Last one

- anonymous

instead of -800x^6 there may be -40x^3

- anonymous

@PoofyPenguin What do you think? I am rechecking my soln ... wait for 5 min.

- PoofyPenguin

I think that I made the mistake in that area but what about the 20x^3?

- anonymous

Yes...

- anonymous

- anonymous

mistake is here

- anonymous

- PoofyPenguin

Let me give it a try.

- PoofyPenguin

Yep! That was correct! Could you please explain what I did wrong? Where did the 20x^3 go?

- anonymous

see here :http://assets.openstudy.com/updates/attachments/50888f89e4b004fc96eb7b9e-sheldoneinstein-1351133302485-capture.jpg

- anonymous

You wrote \[\large{-40x^3}\] instead of -2 ... and that is the MISTAKE.

- PoofyPenguin

Alright! I see it now! Thanks so much for all of your help! :D

- anonymous

No problem.

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