Question

qual é o numero x,sabendo que x=(0,2)³+(0,8)²

Answer 1

x = $(0,2)^{3}$ + $(0,8)^{2}$
x = $( \frac{2}{10} )^{3}$ + $(\frac{8}{10} )^{2}$
x = $\frac{8}{1000}$ + $\frac{64}{100}$
x = $\frac{8+640}{1000}$
x = $\frac{648}{1000}$
x = 0,648