/* program akar persamaan kuadrat */

#include <stdio.h>
#include <math.h>
main()

{

float a,b,c,d,x,x1,x2,x3;

printf(“Persamaan Kuadrat n”);

printf(“Nilai a: “);scanf(“%f”, & a);
if(a==0)
printf(“Bukan persamaan kuadratn”);

else

{

printf(“Nilai b: “);scanf(“%f”, &b);

printf(“Nilai c: “);scanf(“%f”, &c);

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

if (d<0) printf(“Akar-akarnya imajiner n”);

else if (d==0)

{

x=-b/2*a;

printf(“Memiliki satu penyeleseaian %.2f n”, x);

}

else

{

x1=(-b+sqrt(d))/2*a;

x2=(-b-sqrt(d))/2*a;

printf(“x1 = %.2f n”,x1);

printf(“x2 = %.2f n”,x2);

}

}

}

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