Question

Considerando x = -1 e y = -2 Calcular a expressão dada por 2.x – 3. x . y – 5 y *

A) - 2

B) + 2

C) + 4

D) + 5

E) + 6​

Answer 1

2 . ( -1 ) - 3 . ( -1 ) . ( -2 ) -5 . ( -2 )
-2 +3 . ( -2 ) +10
-2 -6 +10
-8 +10
+2