(x^-4)^2/x^-12 решите плиз

[latex]\frac{(x^{-4})^2}{x^{-12}}==\frac{x^{-8}}{x^{-12}}=x^{-8+12}=x^4[/latex]

(x^-4)^2/x^-12=x^-8*x^^12=x^4 (a^m)^n=a^mn a^-m=1/a^m