Ecuatia de gradul 2

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

void main() {
    int a, b, c, Delta;
    float x1, x2;
    printf("Functia de gradul II are forma: ax^2 + bx + c = 0\n");

    printf("a= ");
    scanf_s("%d", &a);

    printf("b= ");
    scanf_s("%d", &b);

    printf("c= ");
    scanf_s("%d", &c);

    Delta = pow(b,2) - 4 * a*c;
    printf("Delta = b^2 - 4*a*c => Delta = %d\n", Delta);

    if (Delta < 0) {
        printf("Delta nu are solutii reale!");
    }
    else
        if (Delta == 0) {
            printf("Delta are doua radacini egale intre ele:\nx1=x2 = (-b) / (2*a) => x1=x2 = %d", ((-b) / (2 * a)));
        }
        else
            if (Delta > 0) {
                x1 = (((-b) - sqrt(Delta)) / (2 * a));
                x2 = (((-b) + sqrt(Delta)) / (2 * a));
                printf("Delta are doua radacini reale:\n x1= (-b -radical(D))/ (2 * a) => x1 = %.2f\nx2 = (-b + radical(D))/ (2*a) => x2 = %.2f", x1, x2);
            }

    _getch();
}