a)
[tex] \frac{ {5}^{7} \times {3}^{6} }{ {15}^{5} } = \frac{ {5}^{7} \times {3}^{6} }{ {3}^{5} \times {5}^{5} } = {5}^{2} \times 3 ^{1} = 25 \times 3 = 75[/tex]
Odpowiedź: B
b)
[tex] \frac{ {5}^{9} \times {3}^{8} }{ {15}^{7} } = \frac{ {5}^{9} \times {3}^{8} }{ {3}^{7} \times {5}^{7} } = {5}^{2} \times {3}^{1} = 25 \times 3 = 75[/tex]
Odpowiedź: D
