Question

(-2,4x3a)•(-0,5xy3)
Помогите плиз

Answer 1

$( - 2.4 {x}^{3} a) \times ( - 0.5x {y}^{3} ) = 1.2 {x}^{3 + 1} a {y}^{3} = 1.2a {y}^{3} {x}^{4}$