tolong bantu ya yang k,l,m,n

No. 4K

[tex]\frac{(x^{-2}y)^{-3}}{(y^{-3})^2} = \frac{x^6y^{-3}}{y^{-6}} = x^6y^3[/tex]

No. 4L

[tex]\left ( \frac{y}{x} \right )^{-5} \left ( \frac{x^2}{y} \right )^3 = \frac{y^{-5}}{x^{-5}} \frac{x^6}{y^3} = x^{11}y^{-8}[/tex]

No. 4M

[tex](m^2n):(\frac{n}{m})^{-1} = (m^2n)(\frac{n}{m}) = mn^2[/tex]

No. 4N

[tex]9p^{-6} : (3p)^{-2} = (3^2p^{-6})(3p)^2 = (3^2p^{-6})(3^2p^2) = 3^4p^{-4}[/tex]