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n=27^9*32^11:2-16^6*2*6^27 este patrat perfect

Răspuns :

N=27^9*32^11:2-16^6*2*6^27 =(3^3)^9*(2^5)^11:2-(2^4)^6*2*(2*3)^27 =3^27*2^54-2^25*(2*3)^27 =3^27*2^54-2^53*3^27 =3^27*2^54(1-2)=-3^27*2^54