Bonsoir,
1. Si on prend 4 :
(4 - 5) x ((4 x 2) + 3) = -1 x (8 +3)
= -1 x 11
= -11
2. (-6 -5) x ((-6 x 2) + 3) = -11 x (-12 + 3)
= - 11 x - 9
= 99
3. (x - 5) x (2x + 3)
4. (x - 5) (2x + 3) = 0
Cela donne x- 5 =0 soit x = 5
et 2x + 3 = 0
2x = -3 soit x = -3/2
Bonne soirée
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Bonsoir,
1. Si on prend 4 :
(4 - 5) x ((4 x 2) + 3) = -1 x (8 +3)
= -1 x 11
= -11
2. (-6 -5) x ((-6 x 2) + 3) = -11 x (-12 + 3)
= - 11 x - 9
= 99
3. (x - 5) x (2x + 3)
4. (x - 5) (2x + 3) = 0
Cela donne x- 5 =0 soit x = 5
et 2x + 3 = 0
2x = -3 soit x = -3/2
Bonne soirée