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a fost răspuns

2187:243=
(2³)²:(2²)³=

Răspuns :

   
[tex]\displaystyle \\ 2187 : 243 = \frac{2187}{243}= \frac{3^7}{3^5}= 3^{7-5}=3^2 = \boxed{9} \\ \\ (2^3)^2:(2^2)^3= \frac{(2^3)^2}{(2^2)^3} = \frac{2^{3\times 2}}{2^{2 \times 3}} = \frac{2^6}{2^6}=\boxed{1} [/tex]