mathematical quandry

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assuming it is typed up correctly the only possible answer is 0

you could have imaginary roots then other possible choice would be +/- root 5i

but chances are you won't get that so I'd go for 0.
 
i'm just upset because i included the imaginary answer in my answer (since it didnt ask for real solutions only) and got it wrong since i chose 'none of the above'

i guess dentists dont believe in the powers of 'i'
 
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