Question 1086048
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{{{k/7}}} is the product of the roots (Vieta's theorem):

{{{k/7}}} = {{{((-3+i*sqrt(299))/14)*((-3-i*sqrt(299))/14)}}} = {{{(3^2+299)/14^2}}} = {{{308/14^2}}}.


Hence, k = {{{(308*7)/14^2}}} = 11.


Thanks to @MathTherapy for pointing my typo in my previous version.
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