Question

комек керек пжпжпжжпжп​

Answer 1

$(x^{-2n})^{3}*(x^{-n+7} )^{-2}=x^{-6n}*x^{2n-14}=x^{-6n+2n-14}=x^{-4n-14}$

Answer 2

х^-6n*x(^-n+7)*(^-2)

x^-6n*x^2n-14

x^-4n-14

ответ: x^-4n-14