Respuestas

2012-05-06T20:21:06+02:00

-2-{-[2+(-5+8)-4]+3}

-2-{-[2+3-4]+3}

-2-{-1+3}

-2-{2}=-2-2=0

2012-05-06T20:27:21+02:00

-2-{-[2+(-5+8)-4]+3}

= -2-{-[2+3-4]+3}

= -2-{-1+3}

= -2-{2}=-2-2

= 0