помогите. (-2x^3y)^3(-5x^2y)^2

Ответ
(-2x^3y)^3 * (-5x^2y)^2 =

= [(-2)^3 * (x^3)^3 * y^3] * [(-5)^2 * (x^2)^2 * y^2] =

= [(-8) * x^9 * y^3] * [25 * x^4 * y^2] =

= (-8)*25 * x^9*x^4 * y^3*y^2 =

= -200 * x^13 * y*5