Friday, August 26, 2022

The roots of a quadratic equation ax² + bx + c = 0

 #include <iostream>

#include <math.h>

using namespace std;


int main()

{   double a,b,c,d;

    cout <<"The roots of a quadratic equation ax² + bx + c = 0\n";

    cout <<"Input a, b, and c\n";

    cin >> a >> b >> c;

    cout <<"The roots of a quadratic equation: " <<a<<"x² + "<<b<<"x + "<<c<<" = 0\n";

  d=b*b-4*a*c;

  if (d<0) cout <<"No solutions\n";

  else if (d==0) cout << "x= "<< -b/(2*a);

  else cout <<"x₁=" << (-b+sqrt(d))/(2*a)<<"\n" <<"x₂=" << (-b - sqrt(d))/(2*a)<<"\n"; 

  return 0;

}

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