Помогите пожалуйста, даю 20 баллов

Здравствуйте!

1)
$2a {}^{5} b {}^{2} \times ba {}^{3} = 2a {}^{8} b {}^{3}$

2)
$3a {}^{2} b \times b {}^{4} a {}^{4} = 3a {}^{6} b {}^{5}$

3)
$( - 0.1x {}^{3} ) {}^{4} \times 10x = \\ = 0.0001x {}^{12} \times 10x = \\ = 0.001x {}^{13}$

4)
$( - 0.2x {}^{2} ) {}^{3} \times 5x {}^{2} = \\ = - 0.008x {}^{6} \times 5x {}^{2} = \\ = - 0.04 x {}^{8}$

5)
$( \frac{2}{3} ab {}^{2} ) {}^{3} \times \frac{3}{2} a {}^{3} b {}^{2} = \\ \\ = \frac{8}{27} a {}^{3} b {}^{6} \times \frac{3}{2} a {}^{3} b {}^{2} = \\ \\ = \frac{4}{9} a {}^{6} b {}^{8}$

6)
$( \frac{3}{7} a {}^{2} b) {}^{2} \times \frac{7}{3} ab {}^{2} = \\ \\ = \frac{9}{49} a {}^{4} b {}^{2} \times \frac{7}{3} ab {}^{2} = \\ \\ = \frac{3}{7} a {}^{5} b {}^{4}$

Удачи в учёбе!