Question

vreau un program in C++ in care sa rezolvi o ecuatie de gradul doi numai introducand a,b,c sa apartina lui Z

Answer 1

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

int main()
{
    int a, b, c;
    float delta, x1, x2;

    cin >> a >> b >> c;
    delta = b * b - 4 * a * c;
    if(delta > 0) {
        cout << "x1 = " << (-b - sqrt(delta)) / (2 * a) << '\n';
        cout << "x2 = " << (-b + sqrt(delta)) / (2 * a) << '\n';
    }
    else if(!delta)
        cout << "x = " << -b / (2 * a);
    else
        cout << "Nu are solutii in multimea numerelor reale.\n";
    return 0;
}