Question

What is $\frac{8m}{n} ^7$ simplified?

Answer 1

$\bf \cfrac{8m^7}{n}\implies 8m^7n^{-1}\implies 2^3m^{3+3+1}n^{-1}\implies 2^3m^3m^3m^1n^{-1} \\\\\\ 2^3(m^2)^3mn^{-1}\implies (2m^2)^3mn^{-1}$