Вывод значения двух переменных

std::pair

template <typename T>
 
std::pair<T, T> f( const T &x, const T &y )
{
...
   return ( std::make_pair( x, y ) );
}
 
template <typename T>
std::ostream & operator<<( std::ostream &os, const std::pair<T, T> &rhs )
{
   os << "( " << rhs.first << ", " << rhs.second << " )";
   return ( os );
}

template <typename T> T Equation(T A, T B, T C)
{
    float X1 = (-B + sqrt(((B*B)-(4*A*C))))/2*A;
    float X2 = (-B - sqrt(((B*B)-(4*A*C))))/2*A;
    return X1,X2;
}
 
int _tmain(int argc, _TCHAR* argv[])
{
           float A,B,C;
    cout<<"\n\nEnter the param :\n\nA :";
    cin>>A;
    cout<<"\nB :";
    cin>>B;
    cout<<"\nC :";
    cin>>C;
    cout<<"\nX at this equation :"<<Equation(A,B,C);
           return 0;
}

std::pair<float, float>

#include <iostream>
 
template <typename T> 
void Equation(T A, T B, T C, float* X1, float* X2)
{
    *X1 = (-B + sqrt(((B*B)-(4*A*C))))/(2*A);
    *X2 = (-B - sqrt(((B*B)-(4*A*C))))/(2*A);
}
 
int main()
{
    float A, B , C, x1, x2;
    std::cout << "\n\nEnter the param :\n\nA :";
    std::cin >> A;
    std::cout << "\nB :";
    std::cin >> B;
    std::cout << "\nC :";
    std::cin >> C;
    Equation(A,B,C, &x1, &x2);
    std::cout << "\nX at this equation:\nx1 = " << x1 << "\nx2 = " << x2;
    return 0;
}