C :

#include "stdio.h"
#include "math.h"
int main() {
    float a = 2, b = 3, c = 1;
    float x1 = (-b + sqrt(b * b - 4 * a * c)) / (2 * a);
    float x2 = (-b - sqrt(b * b - 4 * a * c)) / (2 * a);
    printf("x1=%.4f\n", x1);
    printf("x2=%.4f\n", x2);
    return 0;
}