Activité 4 - Sommes et produits |
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| f) Calcule la valeur numérique des expressions suivantes si tu sais que :
|
| a
– c – d + b = |
0 |
5a
– 2d = |
23 |
| c
– d – b – a = |
8 |
b
. (c + a) = |
–
25 |
| 3a
+ 2c = |
13 |
d
. (b – a) = |
32 |
| 2b
+ 5d = |
–
30 |
–2
. (b – d) = |
4 |
| –3d
– 5c = |
2 |
(b
+ a) . (d + c) = |
4 |
| –2b
– 3a = |
1 |
(c
+ b) . (a – d) = |
–
21 |