-m^8 n^7 : [-m^5n^6 : (-m^2n] tolong pakai cara yaa

-m^8 n^7 ÷ [-m^5n^6 ÷ -m^2n]
=(-m) ^8 n^7 ÷ [(-m) ^5-2 n^6-1]
=(-m)^8 n^7 ÷ (-m) ^3 n^5
=(-m) ^8-3 n^7-5
=(-m) ^5 n^2