Question

помогите пожалуйста^^

Answer 1

$- 3 \frac{3}{7} x {y}^{2} \times \frac{7}{12} {x}^{3} {y}^{5} = \\ - \frac{24}{7} x {y}^{2} \times \frac{7}{2} {x}^{3} {y}^{5} = \\ - 2xy^{2} {x}^{3} {y}^{5} = \\ - 2 {x}^{4} {y}^{7}$