simplfy

(x^2 y^2 z^3)(-3xy^4 z^2)^3

(x^2y^2z^3)(-3xy^4z^2)^3

=(-3)^3(x^2)^3(y^2)^3(z^3)(x)^3(y^4)^3(z^2)^3
=-27x^6y^6z^3x^3y^12z^6
=-27x^9y^18z^9