Explicație pas cu pas:
[tex]{\Big( \frac{12}{5} \Big)}^{3} = {\Big( \frac{ {2}^{2} \cdot 3}{5} \Big)}^{3} = \frac{ {2}^{2 \cdot 3} \cdot {3}^{3} }{ {5}^{3} } = \bf \frac{ {2}^{6} \cdot {3}^{3} }{ {5}^{3} } \\ [/tex]
[tex]{\Big( \frac{21}{2} \Big)}^{4} = {\Big( \frac{3 \cdot 7}{2} \Big)}^{4} = \bf \frac{ {3}^{4} \cdot {7}^{4} }{ {2}^{4}} \\ [/tex]
