Question

a) resolver

2 {- 4 - [2 + (6 – 5 + 10) – 9] +3}

- {7-[-5 (3 - 9) + 5 (- 3 - 6)]+1}

6 + 11{+ [- (7 + 2 - 0)]}

Answer 1

Respuesta:

2 {- 4 - [2 + (6 – 5 + 10) – 9] +3}

=2⋅{−4−[2+(1+10)−9]+3}=  

=2⋅{−4−[2+(11)−9]+3}=

=2⋅{−4−[13−9]+3}=

=2⋅{−4−[4]+3}=

=2⋅{−8+3}=

=2⋅{−5}=

=−10

- {7-[-5 (3 - 9) + 5 (- 3 - 6)]+1}

=−{7−[−5⋅(−6)+5⋅(−9)]+1}=  

=−{7−[30+(−45)]+1}=

=−{7−[−15]+1}=

=−{22+1}=

=−23

6 + 11{+ [- (7 + 2 - 0)]}

=6+11⋅{+[−(9−0)]}=  

=6+11⋅{+[−9]}=

=6+(−99)=

=−93