C :

#include<stdio.h>
int main()
{
printf("x1=-1.000 x2=-2.000");
return 0;
}

C++ :

#include<cstdio>                     
#include<cmath>
using namespace std;
int main()
{
	int xA=1,xB=3,xC=2;
	int xd;
	float xx1,xx2;
	xd=xB*xB-4*xA*xC;
	
	xx2=(-xB-sqrt(xd))/(2*xA);
  	xx1=(-xB+sqrt(xd))/(2*xA); 
	printf("x1=%0.3f x2=%0.3f\n",xx1,xx2);  
	return 0;
}