Question

Por favor me podrían explicar

1) 14 + { 5 + [ 4 + 3 + ( 2 + 4 + 5) - 7] + 8 } =
2) 4 + { 9 + [ 1 + ( 9 - 8) + ( 5 - 2)] + 2} =
3) 1+ { 9 - 7 + 2 + [ 14 - 7 + 2.( 15 - 9)] + 3} =
4) 2x { 5 + [ 4 + (6 + 3) + 2 + (3-2)] x[ 7 - ( 2+ 3 ) + ( 9 -8 +3)] + 12} =
5) 2x { [3+2 (4-3)-2 (6-8)-5]} =
6) 3 x {4(2-7)-11-2[3(-5-1)]} =
7) 4- 2 x { 3[5-2(5-6)-7]+10}+17 =

Answer 1

Respuesta:

Explicación paso a paso:

1) 14 + { 5 + [ 4 + 3 + ( 2 + 4 + 5) - 7] + 8 } (se empieza por el parentesis más interno)

=14 + { 5 + [ 4 + 3 + 11 - 7] + 8 }

=14 + { 5 + 11 + 8 }

=14+24

=38

2) 4 + { 9 + [ 1 + ( 9 - 8) + ( 5 - 2)] + 2}

=4 + { 9 + [ 1 + 1 + 3] + 2}

=4 + { 9 + 5+ 2}

=4+16

=20

3) 1+ { 9 - 7 + 2 + [ 14 - 7 + 2.( 15 - 9)] + 3}

=1+ { 9 - 7 + 2 + [ 14 - 7 + 2.( 6)] + 3}

=1+ { 9 - 7 + 2 + [ 14 - 7 + 12 ]+ 3}

=1+ { 9 - 7 + 2 + 19+3}

=1+ { 9 - 7 + 2 + 19+3}

=1+26

=27

4) 2x { 5 + [ 4 + (6 + 3) + 2 + (3-2)] x[ 7 - ( 2+ 3 ) + ( 9 -8 +3)] + 12}

=2x { 5 + [ 4 + 9 + 2 + 1] x[ 7 - ( 5 ) +4] + 12}

=2x { 5 +16] x[ 6] + 12}

=2x { 21] x[ 18]}

=2×21×18

=756

5)2x { [3+2 (4-3)-2 (6-8)-5]}

=2x { [3+2 (1)-2 (-2)-5]}

=2x { [3+2+4-5]}

=2x { 4}

=2×4

=8

6) 3 x {4(2-7)-11-2[3(-5-1)]}

= 3 x {4(-5)-11-2[3(-6)]}

=3 x {-20-11-2[-18]}

=3 x {-20-11+36}

=3 x {5}

=3x5

=15

7) 4- 2 x { 3[5-2(5-6)-7]+10}+17

=4- 2 x { 3[5-2(-1)-7]+10}+17

=4- 2 x { 3[5+2-7]+10}+17

=4- 2 x { 3[0]+10}+17

=4- 2 x { 0+10}+17

=4- 2 x {10}+17

=4-20+17

=1