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>> Then we have -340 K = 3,400 = 4.905 K^2, which I still don't know how to
>> solve.
>
> That's not what you had. You had this:
>
> -340 K + 3,400 = 4.905 K^2
Yeah, a simple typo.
> which is equivalent to
>
> 4.905 K^2 + 340 K + 3400 = 0
Mmm, I hadn't realised that.
[But... are the signs correct?]
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