Question

please answer this question..​

Answer 1

$= ( \frac{ - 2}{3} ) {}^{3} + \frac{4}{9} \div ( \frac{3}{5} ) {}^{ - 3} \\ \\ = \frac{ - 8}{27} + \frac{4}{9} \times \frac{ - 125}{27} \\ \\ = \frac{ - 8 + 36}{27} \times \frac{ - 125}{27} \\ \\ = \frac{28}{27} \times \frac{ - 125}{27} \\ \\ = \frac{3,500}{729} \\ \\ = 4.80$