PROGRAM IN C++ to solve the quadratic equation using class

#include
#include
#include
float a1,b1,c1;
class quad
{
float a,b,c;
public:
void getinfo(float,float,float);
void display();
void equal(float a,float b);
void imag();
void real(float a,float b,float d);
};
void quad :: getinfo(float a1,float b1,float c1)
{
a=a1;
b=b1;
c=c1;
}
void quad :: display()
{
cout<<"\n a: "<>a1;
cout<<"\n Enter the cofficient of x : "; cin>>b1;
cout<<"\n Enter the constant term : "; cin>>c1;
q.getinfo(a1,b1,c1);
q.display();
if(a1==0)
{
float temp;
temp = c1/b1;
cout<<"\n Linear roots : "< }
else
{
float d;
d=b1*b1-(4*a1*c1);
if(d==0)
q.equal(a1,b1);
else if(d<0)
q.imag();
else
q.real(a1,b1,c1);
}
getch();
}