Question

4) Sejam a = |-8|, b = - 6 e c = |5|. Calcule:

a+b

bc

c-a

ab+c

|b-ac|

|b²|

|b-c|

|a-b|
HELPPPPPPPP

Answer 1

1) a + b
|-8| + |5|
8 + 5
R = 13

2) b . c
-6 . |5|
-6 . 5
R = -30

3) c - a
|5| - |-8|
5 - 8
R = 3

4) a . b + c
|-8| . -6 + |5|
-48 + 5
R = -43

5) |b - a.c|
|-6 - |-8| . |5| |
|-6 -8 . 5|
R = 46

6) |b^2|
|6^2|
6^2
R = 36

7) |b - c|
|-6 - |5| |
R = 11

8) |a - b|
| |-8| - (-6) |
|8 + 6|
R = 14