#include <bits/stdc++.h>
using namespace std;
int gcd(int a, int b) { if (b == 0) return a; else return gcd(b, a % b); }
bool pd(int x, int &r)
{
    for (int i = 0; i * i <= x; i++) if (x == i * i) { r = i; return 1; }
    return 0;
}
int main()
{
    int T, M; scanf("%d%d", &T, &M);
    while (T--)
    {
        int a, b, c, r; scanf("%d%d%d", &a, &b, &c);
        if (a < 0) a = -a, b = -b, c = -c;
        int delta = b * b - 4 * a * c;
        if (delta < 0) { printf("NO\n"); continue; }
        if (pd(delta, r))
        {
            int p = -b + r, q = 2 * a;
            if (p * q == 0) printf("0\n");
            else
            {
                if (p * q < 0) { printf("-"); p = abs(p); q = abs(q); }
                int d = gcd(p, q);
                p /= d; q /= d;
                if (q == 1) printf("%d\n", p); else printf("%d/%d\n", p, q);
            }
        }
        else
        {
            int p = -b, q = 2 * a;
            if (p * q != 0)
            {
                if (p * q < 0) { printf("-"); p = abs(p); q = abs(q); }
                int d = gcd(p, q);
                p /= d; q /= d;
                if (q == 1) printf("%d+", p); else printf("%d/%d+", p, q);
            }
            p = 1, q = 2 * a;
            for (int i = 2; i * i <= delta; i++)
                while (delta % (i * i) == 0)
                {
                    p *= i;
                    delta /= (i * i);
                }
            int d = gcd(p, q);
            p /= d; q /= d;
            if (p != 1) printf("%d*", p);
            if (delta != 1) printf("sqrt(%d)", delta);
            if (q != 1) printf("/%d", q);
            printf("\n");
        }
    }
    return 0;
}