#include <iostream>
#include <windows.h>
#include <math.h>
using namespace std;
int main()
{
float a,b,c;
float x1,x2,x0;
float delta;
cin>>a;
cin>>b;
cin>>c;
if(a==0){
cout<<"to nie jest trojmian kwadratowy"<<endl;
}
else{
delta=b*b-4*a*c;
if(delta>0){
x1=(-b-sqrt(delta))/2*a;
x2=(-b+sqrt(delta))/2*a;
cout<<"x1="<<x1<<endl<<"x2="<<x2<<endl;
}else{
if(delta==0){
x0=-b/2*a;
cout<<"x0="<<x0;
}
else{
cout<<"Nie ma pierwiastkow w zbiorze rzeczywistej";
system("pause");
}
}
}system("pause");
}
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