(3x+2) / (2x-1) = (x+6) / (2x+1)
(3x+2)=(x+6)*(2x-1)/(2x+1)
(2x+1)*(3x+2)=(2x-1)*(x+6)
6x^2 +7x +2 = 2x^2 +11x -6
(6x^2 -2x^2) +(7x -11x) +(2+6)=0
4x^2 -4x +8=0
or 4*(x^2-x+2)=0
zeroes...x=0.5 +- 1.322875656i (komplex variabels)
-b/2a=0.5, b^2-4ac=-7, sqrt(7)=2.645751311