Question

[ 4 -1 + ( 2 x 1 – 2 ) +1]

Answer 1

[ 4 - 1 + ( 2 x 1 – 2 ) + 1 ]

[ 4 - 1 + ( 2 x 1 – 2 ) + 1 ]

[ 4 - 1 + ( 2 – 2 ) + 1 ]

[ 4 - 1 + ( 0 ) + 1 ]

[ 4 - 1 + 1 ]

[ 4 - 0 ]

[ 4 ]

Espero ter ajudado!! -zCM