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Calculati : x^2:2^2.= (3^2)^2


Răspuns :

x^2:2^2.= (3^2)^2
x^2:4=9^2
x^2:4=81
x^2=81x4
x^2=324
x=V324=18
    radical din 324=18,deoarece 324=2^2x3^4