function x = rqe(a,b,c)
global a b c 
 
c = 11472.4;
b = -23.0564;
a = 0.0112;
 
x(1) = (-b + sqrt(b^2 - 4 * a * c))/(2*a);
x(2) = (-b - sqrt(b^2 - 4 * a * c))/(2*a);
end