Question

Вычислите, 5^-9 • 25^2/125^-4

Answer 1

$frac{ 5^{-9} *25 ^{2} }{125 ^{-4} } = frac{ 5^{-9}*( 5^{2} ) ^{2} }{(5 ^{3} ) ^{-4} } = frac{ 5^{-5} }{5 ^{-12} } = 5^{-5+12} = 5^{7}$