Question

me ajudar por favor tô precisando pra agora​

Answer 1

$2a)( - 7) {}^{3} = \\ - 7 {}^{3} \\ - (7 \times 7 \times 7) \\ - 343$

$b)( - 1) {}^{6} = \\ {1}^{6} \\ 1$

$c)( - 2) {}^{0} = 1$

$d) - {2}^{0} = - 1$

$e)(0.4) {}^{2} = ( \frac{2}{5} ) {}^{2} = \frac{4}{25}$

$f)( \frac{2}{3} ) {}^{ - 3} = ( \frac{3}{2} ) {}^{3} = \frac{27}{8}$

$3)( \frac{1}{5} ) {}^{ - 2} \times ( + \frac{2}{3}) {}^{3} + 3 {}^{ - 2} \times 3 {}^{5} =$

$5 {}^{2} \times \frac{8}{27} + 3 {}^{3}$

$25 \times \frac{8}{27} + 27$

$\frac{200}{27} + 27$

$\frac{929}{27}$