#include <bits/stdc++.h>
#define int long long
using namespace std;
const int N = 1e5 + 10;
const int INF = 0x3f3f3f3f;
int a , b , c , t , m;
bool flag = 0;
bool check (int d)
{
	int x = sqrt (d);
	if (x * x == d)
		return 1;
	return 0;
}
signed main()
{
	    freopen ("uqe.in" , "r" , stdin);
		freopen ("uqe.out" , "w" , stdout);
		cin >> t >> m;
		while ( t-- )
		{
			scanf ( "%lld%lld%lld" , &a , &b , &c);
			int d = b * b - 4 * a * c;
			int x = a << 1;
			if (d < 0)
			{
				printf ("NO\n");
				continue;
			}
//			if ( b == 0 )
			if (check (d))
			{
				int ans;
				if (x < 0) ans = -sqrt (d) - b;
				else ans = sqrt (d) - b;
				if (ans % x == 0)
					printf ("%lld\n" , ans / x);	
				else
				{
					int y = __gcd (ans , x);
					ans /= y;
					x /= y;
					if (x < 0)
					{
						x = -x;	
						if (ans > 0) cout << "-";
					} 
				    printf ("%lld/%lld\n" , ans , x);
				}
			}
			else
			{
				int ans = -b , e = 0 , y = __gcd (ans , x);
				if (ans != 0)
				{
					if (ans % x == 0)
						printf ("%lld+" , ans / x);
					else
					{
						ans /= y;
						int xx = x;
						xx /= y;
						if (xx < 0)
						{
							xx = -xx;
							if (ans > 0) cout << "-";	
						} 
						printf ("%lld/%lld+" , ans , xx);
			    	}
				}
				for (int i = sqrt (d); i >= 1; i--)
				{
					int k = i * i;
					if (d % k == 0)
					{
						e = i , d /= k;
						break;
					}		
				}
				if (e)
				{
					y = __gcd (e , x);
					e /= y;
					int xx = x;
					xx /= y;
					if (e < 0) e = -e;
					if (e == 1)
					{
						if (xx == 1)
							printf ("sqrt(%lld)\n" , d);
						else if (xx < 0)
						{
							xx = -xx;
							printf ("sqrt(%lld)/%lld\n" , d , xx);	
						}
						else printf ("sqrt(%lld)/%lld\n" , d , xx);
						continue;
					}
					else if (xx == 1)	
						printf ("%lld*sqrt(%lld)\n" , e , d);
					else if (xx < 0)
						printf ("%lld*sqrt(%lld)/%lld\n" , e , d , -xx);
					else printf ("%lld*sqrt(%lld)/%lld\n" , e , d , xx);
				}
				else if (x < 0)
					printf ("sqrt(%lld)/%lld\n" , d , -x);
				else printf ("sqrt(%lld)/%lld\n" , d , x);
			}
		}		
		return 0;
}