Question

efetue e simplifique -5m(1,2-4)/5m

Answer 1

- 5m(1,2 - 4)/5m =
-(1,2 - 4) = 
(-1,2 + 4) = 2,8

Answer 2

$\frac{-5m(1,2-4)}{5m}$
$\frac{-5m}{5m}=-1$
$-1*(1,2-4)=+2,8$