Question

помогите решить
-5xy^2(4х^3-xy^3)​

Answer 1

$- 5x {y}^{2} \times (4 {x}^{3} - x {y}^{3} ) = - 20 {x}^{4} {y}^{2} + 5 {x}^{2} {y}^{5}$