1) -10m^7n^82) 16a^10b^2
125x^3y^4(-1/5x²y)³= 125x^3y^4 (-1)^3 / (5^3 x^6 y^3)= -125/125x^3y^4 / 125x^6y^3= -1/x^3y^-3= -1/y^3x³
1) -10m^7n^8
2) 16a^10b^2
125x^3y^4(-1/5x²y)³
= 125x^3y^4 (-1)^3 / (5^3 x^6 y^3)
= -125/125x^3y^4 / 125x^6y^3
= -1/x^3y^-3
= -1/y^3x³