Question

Помогите срочно плиз

Answer 1

$- 2 \frac{7}{10} {x}^{ - 3} {y}^{ - 2} \times \frac{2}{3} {x}^{ - 2} {y}^{6} = - \frac{27}{10} {x}^{ - 3} {y}^{ - 2} \times \frac{2}{3} {x}^{ - 2} {y}^{6} = - \frac{9}{5} {x}^{ - 5} {y}^{4}$