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



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PoofyPenguin
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Here's the question:

PoofyPenguin
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Here's the work that I've done:

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

PoofyPenguin
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Could anyone help me?

SheldonEinstein
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Yes I am checking it.

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

SheldonEinstein
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There will be 40x^3 ? Last one

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

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

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

SheldonEinstein
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Yes...


SheldonEinstein
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mistake is here

SheldonEinstein
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@PoofyPenguin

PoofyPenguin
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Let me give it a try.

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


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

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

SheldonEinstein
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No problem.