#include <iostream.h>
#include <conio.h>
#include <math.h>
int main(){
	int a,b,c;
	int d;
	double r1,r2;
	cout << "enter 3 number (a,b,c) for ax^2+bx+c  \n" ;
	cout << " please enter a :" ;
	cin >> a ;
	cout << " please enter b :" ;
	cin >> b ;
	cout << " please enter c :" ;
	cin >> c ;
	d= (b*b) - (4*a*c);
	if (d>0){
		r1=((-b)-sqrt(d))/(2*a);
		r2= ((-b)+sqrt(d))/(2*a);
		cout << "r1 : " << r1 <<'\t'<< "r2 : " << r2;
	}
	else if (d==0){
		r1 = (-b)/(2*a);
		cout << " r1,r2 : " << r1;
	}
	else if (d<0)
		cout << " rishe nadarim " ;
getch();
return 0 ;
}