Question 1119261
{{{rx^2-x/s-3=0}}}


{{{rsx^2-x-3s=0}}}


{{{x=(1+- sqrt(1+4rs*3s))/(2rs)}}}


{{{x=(1+- sqrt(1+12rs^2))/(2rs)}}}

.


{{{x=1/(2rs)+- sqrt(1+12rs^2)/(2rs)}}}