Mencari akar

Mencari AKAR:

 #include <iostream>
#include <math.h>
#include <conio.h>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
int main(int argc, char** argv) {
    int   A, B, C;

long  disk;

float x1, x2;

cout << "Koefisien pangkat 2   : "; cin >> A;

cout << "Koefisien pangkat 1   : "; cin >> B;

cout << "Koefisien pangkat 0   : "; cin >> C;

if (A == 0) {

cout << "bukan pers. kuadrat.\n";

cout << "Harga akar = " << -C/B; }  else {

disk = B*B - 4*A*C;

if (disk > 0) {

x1 = -B+sqrt(disk)/(2*A);

x2 = -B-sqrt(disk)/(2*A);

cout << "diskriminan = " << disk << endl;

cout << "x1 = " << x1 << endl;

cout << "x2 = " << x2 << endl;

}  else if (disk == 0) {

x1 = -B/(2*A);   x2 = x1;

cout << "diskriminan = 0\n";

cout << "x1 = " << x1 << endl;

cout << "x2 = " << x2 << endl;

} else cout << "Akar imajiner";

}
    return 0;
}

Program Raptornya: