8.cpp

#include <iostream>
#include <cmath>
using namespace std;

int main() {
    double a, b, c;
    
    cout << "Enter coefficients (a, b, c): ";
    cin >> a >> b >> c;

    double discriminant = b * b - 4 * a * c;
    
    if (discriminant > 0) {
        double root1 = (-b + sqrt(discriminant)) / (2 * a);
        double root2 = (-b - sqrt(discriminant)) / (2 * a);
        cout << "Root 1: " << root1 << endl;
        cout << "Root 2: " << root2 << std::endl;
    } else if (discriminant == 0) {
        double root1 = -b / (2 * a);
        cout << "Root 1 and Root 2 are real and equal: " << root1 << endl;
    } else {
        double realPart = -b / (2 * a);
        double imaginaryPart = sqrt(-discriminant) / (2 * a);
        cout << "Root 1: " << realPart << " + " << imaginaryPart << "i" << endl;
        cout << "Root 2: " << realPart << " - " << imaginaryPart << "i" << endl;
    }

    return 0;
}