Question

2 la puterea15 x 8 la puterea 10 x 4 la puterea 21

Answer 1

$2^{15} * 8^{10} * 4^{21} = \\ 2^{15} * (2^{3} ) ^{10} * (2^{2}) ^{21} \\ 2^{15} * 2^{30} * 2^{42} \\ 2^{15+30+42} \\ 2^{87}$