4x^2-4√3x+3=x^23x^2-4√3x=-3x^2-4√3x/3=-1x^2-4√3x/3+4/3=-1+4/3(x-2√3/3)^2=1/3x-2√3/3=±√3/3x=2√3/3±√3/3x=√3/3,x=√3