(-2x^2)^5/(-x^3)^3+(2x)^4
=(-32x^10)/(-x^9)
=32x
[5xy^2(x^2-3xy)-(-3x^2y^2)^3]/5(xy)^2
=(5x^3y^2-15x^2y^3+27x^6y^6)/(5x^2y^2)
=[5x^2y^2(x-3y+27/5x^4y^4)]/(5x^2y^2)
=x-3y+27/5x^4y^4
(-2x^2)^5/(-x^3)^3+(2x)^4
=(-32x^10)/(-x^9)
=32x
[5xy^2(x^2-3xy)-(-3x^2y^2)^3]/5(xy)^2
=(5x^3y^2-15x^2y^3+27x^6y^6)/(5x^2y^2)
=[5x^2y^2(x-3y+27/5x^4y^4)]/(5x^2y^2)
=x-3y+27/5x^4y^4