Question

Quanto é (-2)^-1 + (1/3)^2
------------------------ = ?
V 1/25

Answer 1

{(-2)^-1 + (1/3)^2} / ²√1/25

= {- 1/2  + 1/9} / 1/5

= {(-1.9 + 2.1) /18} /1/5

= {(-9 + 2) /18}  / 1/5

= (-7 / 18) x  5

= -35 /18

Answer 2

$(-2)^{-1}$ + $(1/3)^{2}$/√1/25

[1/2+1/9]/1/5        (tire o MMC)

[1/2+1/9]/1/5

[(-9+2)/18]/1/5

(-7/18)/(1/5)

(-7/18).(5/1)

-35/18

agora sim 100% de certeza que está certo kkkkk