Verified answer

[tex]1. \: \frac{3ab}{5} \: \frac{4b}{a {}^{2} } = \frac{12b {}^{2} }{5a} [/tex]

[tex]2. \: \frac{3x {}^{2} }{2} \frac{2}{9x} = \frac{1}{3} \times [/tex]

[tex]3. \: \frac{x {}^{2} - x - 6 }{5x + 5} \: \frac{5}{x - 5} = \frac{x + 2}{x + 1} [/tex]

[tex]4. \: \frac{4}{n - 6} \div \frac{4n}{8n - 48} = \frac{8}{n} [/tex]

[tex]5. \: \frac{a - 4}{a {}^{2} - 2a - 8} \div \frac{1}{a - 5} = \frac{a - 5}{a + 2} [/tex]

[tex]6. \: \frac{6a + 27}{18a {}^{2} + 36a} \div \frac{16a + 72}{2a + 4} = \frac{1}{24a} [/tex]

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