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Art [367]
3 years ago
5

__ FeC2O4 +__ CO2->__ Fe2 (C2O4)3

Mathematics
2 answers:
Mariana [72]3 years ago
8 0
The coefficients in order are 2 2 1
klemol [59]3 years ago
6 0
2 2 1 are your coefficients
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Using the factorised trinomial <img src="https://tex.z-dn.net/?f=%28n-2%29%284n-7%29" id="TexFormula1" title="(n-2)(4n-7)" alt="
andrew-mc [135]
4n² - 15n + 14<span> is always the product of two numbers, for it to be prime number, one of these factors must be either 1 or -1.

Case n - 2 = 1
That would be n = 3
Then </span>4n² - 15n + 14<span> = 5 , which is prime.

Case n - 2 = -1
That would be n = 1
Then </span>4n<span>² - 15n + 14 = 3, which is also prime.

Case 4n - 7 = 1
That would be n = 2 and that makes other factor (n-2) zero so it's not prime

Case 4n-7 = -1
That would be n = 3/2 which is not integer, so </span>4n<span>² - 15n + 14 will not be interger.

For any other n values, </span>4n<span>² - 15n + 14 will be composite number since it is product of two factors.

Therefore we are left with n = 1 and n = 3; only two values of n.</span>
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3 years ago
FREE POINT BECOS I CANT BE BOTHERED
ddd [48]
Thanks besti ;)))))))))))
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Is 1/2x -1 equivalent to 2/3(3/4x-3/2)
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3 years ago
I cant figure this out what is 2+2?<br> I keep getting fish and idk why plzzzz helpp
Misha Larkins [42]

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Seriously i know you r kidding its 4 for sure.

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I don’t think soooooo

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