Functia de gradul al doilea - determinare coeficienti | Programe C++

#include <iostream>
#include <math.h>
using namespace std;

int main()
{
int a, b, c, delta, x1, x2;
cout<<"a=";
cin>>a;
cout<<"b=";
cin>>b;
cout<<"c=";
cin>>c;

if(a!=0){
cout<<"\n"<<"("<<a<<")"<<"x*x+"<<"("<<b<<")"<<"x+"<<"("<<c<<")=0";
}
else{
cout<<"Nu este functie de gradul al doilea!"<<"\n\n";

return 0;
}

delta=(b*b)-4*a*c;
cout<<"\n"<<"delta=" <<delta;

if(delta>0){
x1=((-b)+sqrt(delta))/(2*a);
x2=((-b)-sqrt(delta))/(2*a);
cout<<"\n\n"<<"x1="<<x1;
cout<<"\n"<<"x2="<<x2;
}
if(delta<0){
cout<<"\n\n"<<"Functia nu are solutii reale!";
return 0;}
if(delta==0){
x1=x2=(-b)/(2*a);
cout<<"\n\n"<<"x1="<<x1<<"\n"<<"x2="<<x2;}
}