Question

Упростите выражение: 81x^5y*(- 1/3xy^2)^3.

Answer 1

$81 {x}^{5} y \times ( - \frac{1}{3} x {y}^{2} {)}^{3} = 81 {x}^{5} y \times ( - \frac{1}{27} {x}^{3} {y}^{6}) = - 3 {x}^{8} {y}^{7}$