Question

please solve this question bro and sister please ​

Answer 1

Answer:

use the laws of indices

Answer 2

Answer:

Know that:

$\tt{64^{\frac{-1}{2}} = \frac{1}{8}}$

$\tt{64^{\frac{1}{2}} = 8}$

$\tt{64^{\frac{3}{2}} = 8^{3} = 512}$

Put the values:

$\sf{5 \times \frac{1}{8} (8 + 512)}$

=> $\sf{5 \times \frac{1}{8} \times 520}$

=> $\sf{325}$

__________________