Write a C++ program to find the roots of and quadratic equation of type a(x^2)+b(x)+c where a is not equal to zero.

Write a C++ program to find the roots of and quadratic equation of type a(x^2)+b(x)+c where a is not equal to zero. 

Program Code:

#include<iostream>

#include<math.h>

using namespace std;

int main()

{

int x,y,z;

float root1, root2;

cout<<"Enter values of  x : ";

cin>>x;

cout<<endl;

cout<<"Enter values of  y : ";

cin>>y;

cout<<endl;

cout<<"Enter values of  z : ";

cin>>z;

cout<<endl;

int dis = y*y-4*x*z;

if(dis == 0)

{

root1= (-y)/(2*x);

root2 = root1;

cout<<"Roots of quadratic equations are real & equal";

cout<<endl;

}

else if(dis > 0)

{

root1 = -(y + sqrt(dis))/(2*x);

root2=-(y - sqrt(dis))/(2*x);

cout<<"Roots of quadratic equations are real & distinct";

cout<<endl;

}

else

{

root1 = (-y)/(2*x);

root2 = sqrt(-dis)/(2*x);

cout<<"Roots of quadratic equations are imaginary";

cout<<endl;

}

cout<<" First root of quadratic equations is : "<<root1;

cout<<endl;

cout<<" Second root of quadratic equations is : "<<root2;

return 0;

}

The program output is tested on www.jdoodle.com

Output:

Enter values of  x : 1

Enter values of  y : 4

Enter values of  z : 4

Roots of quadratic equations are real & equal

First root of quadratic equations is : -2

Second root of quadratic equations is : -2

Thanks

Mukesh Rajput