Question

Care este rezolvarea ecuatiei de gradul 2 in C++?

Answer 1

#include <iostream>

#include <cmath>

using namespace std;

int main(){

float a,b,c,delta;

cout << "Introduceti coeficientii : ";

cin >> a >> b >> c;

delta = b*b-4*a*c;

if(delta<0) cout << "Nu exista solutii reale";

else if(delta==0) cout << "Solutie unica : " << -b/(2*a);

else cout << "Solutii : " << (-b+sqrt(delta))/(2*a) << " si  " << (-b-sqrt(delta))/(2*a);

}