#include<stdio.h> #include<math.h> int main() { double x0,x1,f,f1; x1=1.5; do { x0=x1; f=((2*x0-4)*x0+3)*x0-6; f1=(6*x0-8)*x0+3; x1=x0-f/f1; }while(fabs(x0-x1)>=1e-5); printf("%5.2f\n",x1); return 0; }