Question

Question4..........................

Answer 1

Answer:

see explanation

Step-by-step explanation:

Given

- ($\frac{2}{5}$ )²

The negative is outside the bracket and is not squared, that is

= - $\frac{2}{5}$ × $\frac{2}{5}$

= - $\frac{2(2)}{5(5)}$ = - $\frac{4}{25}$

Given

$\frac{5^3}{3}$ = $\frac{5(5)(5)}{3}$ = $\frac{125}{3}$