Question 1209592
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<pre>

Edwin solved the problem practically to the end and derived the formula for the roots

    {{{x[1,2]}}} = {{{(-22 +- sqrt(-60))/16}}}.


But Edwin forgot to make the last step and to reduce this fraction.


So, I make this step on my own    

    {{{x[1,2]}}} = {{{(-11 +- sqrt(-15))/8}}}.


This time, the formula is presented in the form with P = -11 and R = 8, 
that are relatively prime integer numbers.


The numbers P and R are relatively prime integers, and the number R in the denominator is positive,
so all requirements are satisfied.
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Solved.