Question

1.√16 - (10/2) - (3 - 5) + (8 - 6) 3² - 14 - 4

2. - {2 + 3 + (- 7 + 8 - [- 4 + 5) ] }

3. √9 - 7 + {- 2 + 3² - ( √4 - 2 + ( 3 + 2²) - 7) + 8 }

help please , I did not understand the procedure and I need to solve it for tomorrow!! thanks you

Answer 1

1.√16 - (10/2) - (3 - 5) + (8 - 6) 3² - 14 - 4
4 - 5 - ( -2 ) + (2) 9 -18
4 - 5 + 2 + 18 - 18
-1 + 2
0

2. - {2 + 3 + (- 7 + 8 - [- 4 + 5) ] }
- {5 + (1 - [1])}
- { 5 + ( 1 -1)}
- { 5 }
-5

3. √9 - 7 + {- 2 + 3² - ( √4 - 2 + ( 3 + 2²) - 7) + 8 }
3 - 7 +{-2 + 9 - (2 - 2+ ( 7) -7) + 8}
-4 + { 7 - 2 + 2 - 7 + 7 +8}
-4 + { 15}
11