Untitled

#include<iostream>
#include<cmath>
using namespace std;
void main(){
    double a , b , c;
    cout << "Enter a = ";
    cin >> a;
    cout<<"Enter b = ";
    cin>>b;
    cout<<"Enter c = ";
    cin >> c;
    if (a == 0)
    {
        if (b == 0)
        {
            cout<<"a ya b hadeaghal yekishon gheir sefr bashand"<< endl;
        } else
        {
            double x = -c/b;
            cout<<"x = "<<x<<endl;
        }
    } else {
        double delta=b*b-4*a*c;
        if (delta<0){
          cout<<"  moyadele ghabele hal nist "<< endl;
        } else {
            double x1 = (-b + sqrt(delta)) / 2 * a;
            double x2 = (-b - sqrt(delta)) / 2 * a;

            cout<<"x = "<<x1<<" va " <<x2<<endl;
        }
    }
    
}