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        int a,b,c ;
        float delta,x1,x2,x3;

        printf("ax2+bx+c formundaki 2. dereceden bir polinomun koklerini hesaplayan c programi\n\n");
        printf("a yi giriniz\n");
        scanf("%d", &a);
        printf("b yi giriniz \n");
        scanf("%d", &b);
        printf("c yi giriniz \n");
        scanf("%d", &c);

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

        if (delta>0)
        {
            x1=(-b+sqrt(delta))/(2*a);
            x2=(-b-sqrt(delta))/(2*a);
            printf("x1 =%f \nx2 =%f", x1,x2);

        }
        if (delta<0)
            printf("kok yok");
        if (delta ==0)
        {
            x3=-(b/2*a);
            printf("x3 =%f ", x3);