Question

(1/2)xy-2xy qual é o resultado?

Answer 1

(1/2)xy-2xy
xy/2  -  2xy  (tira o mmc)
(xy-4xy)/2
-3xy/2
Simplicando fica isso aí kk

Answer 2

$\dfrac{1}{2}xy -2xy \\ \\ \\ \dfrac{xy}{2} - 2xy \\ \\ \\ \dfrac{xy - 4xy}{2} \\ \\ \\=\ \textgreater \ \dfrac{-3xy}{2}$