Ответ:
[tex]2b {}^{ \frac{2}{7} } \div (0.2b {}^{ \frac{3}{7} } )[/tex]
[tex]2b {}^{ \frac{2}{7} } \div ( \frac{1}{5} b {}^{ \frac{3}{7} } )[/tex]
[tex]2b {}^{ \frac{2}{7} } \div \frac{b {}^{ \frac{3}{7} } }{5} [/tex]
[tex]2b {}^{ \frac{2}{7} } \times \frac{5}{b {}^{ \frac{3}{7} } } [/tex]
Сокращаем на общий делитель b^2/7:
[tex]2 \times \frac{5}{b {}^{ \frac{3}{7} - \frac{2}{7} } } [/tex]
[tex]2 \times \frac{5}{b {}^{ \frac{1}{7} } } [/tex]
[tex] \frac{2 \times 5}{b {}^{ \frac{1}{7} } } [/tex]
[tex] \frac{10}{b {}^{ \frac{1}{7} } } [/tex]
[tex] \frac{10}{ \sqrt[7]{b} } [/tex]
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Ответ:
[tex]2b {}^{ \frac{2}{7} } \div (0.2b {}^{ \frac{3}{7} } )[/tex]
[tex]2b {}^{ \frac{2}{7} } \div ( \frac{1}{5} b {}^{ \frac{3}{7} } )[/tex]
[tex]2b {}^{ \frac{2}{7} } \div \frac{b {}^{ \frac{3}{7} } }{5} [/tex]
[tex]2b {}^{ \frac{2}{7} } \times \frac{5}{b {}^{ \frac{3}{7} } } [/tex]
Сокращаем на общий делитель b^2/7:
[tex]2 \times \frac{5}{b {}^{ \frac{3}{7} - \frac{2}{7} } } [/tex]
[tex]2 \times \frac{5}{b {}^{ \frac{1}{7} } } [/tex]
[tex] \frac{2 \times 5}{b {}^{ \frac{1}{7} } } [/tex]
[tex] \frac{10}{b {}^{ \frac{1}{7} } } [/tex]
[tex] \frac{10}{ \sqrt[7]{b} } [/tex]