Question

5 la puterea 21 x 5 x 5 la puterea a doua trb sa iasa o singura putere

Answer 1

$5 {}^{21} \times 5 \times 5 {}^{2} \\ 5 {}^{22} \times 5 {}^{2} \\ 5 {}^{24}$

Answer 2

$5 {}^{21} \times 5 \times {5 }^{2} =$
$5 {}^{21} \times 5 {}^{1} \times 5 {}^{2} =$
$5 {}^{21 + 1 + 2} =$
$5 {}^{24}$