#include<bits/stdc++.h>
using namespace std ;
long long t,m,a,b,c,de;
long long gcd(long long x,long long y)
{
	if(y==0)return x;
	else return gcd(y,x%y);
}
void doit(long long fz,long long fm)
{
	long long gcdd=abs(gcd(fz,fm));
	fz/=gcdd;fm/=gcdd;
	if(fm==1)cout<<fz;
	else
	cout<<fz<<"/"<<fm;
}
int main()
{
	freopen("uqe.in","r",stdin);
	freopen("uqe.out","w",stdout); 
	cin>>t>>m;
	while(t--)
	{
		cin>>a>>b>>c;
		de=b*b-4*a*c;
		if(de<0)cout<<"NO";
		else
		{
			long long zs=0;
			for(long long i=1;i*i<=de;i++)
			{
				if(de%(i*i)==0)zs=i; 
			}
			if(zs*zs==de)
			{
				if(a>0)
				{
					long long fz=-b+zs,fm=2*a;
					doit(fz,fm);
				}
				else
				{
					long long fz=b+zs,fm=-2*a;
					doit(fz,fm);
				}
			}
			else
			{
				long long fz,fm;
				if(a>0)
				fz=-b,fm=2*a;
				else fz=b,fm=-2*a;
				if(fz!=0)
				{
					doit(fz,fm);
					cout<<"+";
				}
				long long r=de/(zs*zs);
				if(a>0)
				fz=zs,fm=2*a;
				else fz=zs,fm=-2*a;
				long long gcdd=gcd(fz,fm);
				fz/=gcdd,fm/=gcdd;
				if(fm==1)
				{
					if(fz==1)cout<<"sqrt("<<r<<")";
					else cout<<fz<<"*sqrt("<<r<<")";
				}
				else if(fz==1)cout<<"sqrt("<<r<<")/"<<fm;
				else cout<<fz<<"*sqrt("<<r<<")/"<<fm;
	
			}
		}
		cout<<endl;
	}
	return 0;
}