Bonjour,
1)
5
10
7
49
33
2)
-1
-2
-5
25
9
3
6
- 7
3)
formule b
x
2x
2x-3
(2x-3)²
(2x-3)² -16
4)
(2x-3)² -16=
(2x-3)(2x-3) -16=
4x² -6x -6x +9 -16 =
4x² -12x -7
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Bonjour,
1)
5
10
7
49
33
2)
-1
-2
-5
25
9
3
6
3
9
- 7
3)
formule b
x
2x
2x-3
(2x-3)²
(2x-3)² -16
4)
(2x-3)² -16=
(2x-3)(2x-3) -16=
4x² -6x -6x +9 -16 =
4x² -12x -7