#include <stdio.h>

#include <math.h>

int main()

{

float x1,gh,x2; int a, b, c, fz,fm;

scanf_s("%d%d%d", &a, &b, &c);

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

if (gh > 0)

{

gh = sqrt(gh);

fz = -b + gh;

fm = 2 * a;

x1 = fz / fm; x2 = -fz / fm;

printf("x1=%f,x2=%f", x1, x2);

}

else if (gh = 0)

{

gh = sqrt(gh);

fz = -b + gh;

fm = 2 * a;

x1 = fz / fm;

printf("x1=x2=%f", x1);

}

else if (gh < 0)

{

printf("不存在根号");

}

else

{

printf("wrong");

}

return 0;