Question

1+x+xy-2+2x-3xy-3+2xy-3x con detalles por faaaaa

Answer 1

1+x+xy-2+2x-3xy-3+2xy-3x
 
x+2x-3x= 0
xy-3xy+2xy= 0
1-2-3= -4

= -4

Answer 2

1+x+xy-2+2x-3xy-3+2xy-3x=
(xy-3xy+2xy)+(x+2x-3x)+(1-2-3)=
(0)+(0)+(-4)=
-4