#include <stdio.h>
#include <math.h>

int  main()
{
	double x1, x0, 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(x1 - x0) >= 1e-5);
	printf("方程在1.5附近的根为：%lf\n", x1);
	return 0;
}