#include <stdio.h>
#include <math.h>
int main()
{
double x0,x1,fx,fx2;
x0=1.5;
while(fabs(x1-x0)>=1e-5)
{
x0=x1;
fx=(2*x0*(x0-2)+3)*x0-6;
fx2=2*x0*(3*x0-4)+3;
x1=x0-fx/fx2;
}
printf("%5.2f\n",x1);
return 0;
}