Question

Спростити те що на фото

Answer 1

$5) \frac{1}{5} {x}^{3} {y}^{3} \times 25 {x}^{2} y = 5 {x}^{5} {y}^{4} \\ 6) \frac{2}{3} x {y}^{2} \times ( - 0.6 {x}^{3} y) = \\ \frac{2}{3} \times ( - \frac{6}{10} ) {x}^{4} {y}^{3} = - \frac{2}{5} {x}^{4} {y}^{3} \\ 7) - 9y \times \frac{2}{3} x {y}^{2} = - 6x {y}^{3} \\ 8)2 {c}^{2} \times ( - {c}^{2} b) = - 2 {c}^{4} b \\ 9)3 {x}^{2} y \times 4x {y}^{2} = 12 {x}^{3} {y}^{3} \\ 10) \frac{1}{7} {a}^{2} b \times ( - 2\frac{1}{3} a {b}^{5} ) = \\ \frac{1}{7} \times ( - \frac{7}{3} ) {a}^{3} {b}^{6} = - \frac{1}{3} {a}^{3} {b}^{6}$