bonsoir
( 3 x + 1) - ( 4 x - 2 ) = 0
3 x + 1 - 4 x + 2 =0
- x = - 1 - 2 - x = - 3
x = 3
3 x² - 4 x = 0
x ( 3 x - 4 ) = 0
x = 0 ou 4/3
( 4 x + 3 ) ( 2 - 3 x ) = 6
8 x - 12 x² + 6 - 9 x = 6
- 12 x² - x = 6 - 6
- 12 x² - x = 0
x = 0
12 + 3 x = 16 x - 72
3 x - 16 x = - 72 - 12
- 13 x = - 84
x = 84 /13
Réponse :
3x +1 = 0
3x=-1
X=-1sur 3
4x-2=0
4x=2
X=2
Explications étape par étape
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bonsoir
( 3 x + 1) - ( 4 x - 2 ) = 0
3 x + 1 - 4 x + 2 =0
- x = - 1 - 2 - x = - 3
x = 3
3 x² - 4 x = 0
x ( 3 x - 4 ) = 0
x = 0 ou 4/3
( 4 x + 3 ) ( 2 - 3 x ) = 6
8 x - 12 x² + 6 - 9 x = 6
- 12 x² - x = 6 - 6
- 12 x² - x = 0
x = 0
12 + 3 x = 16 x - 72
3 x - 16 x = - 72 - 12
- 13 x = - 84
x = 84 /13
Réponse :
3x +1 = 0
3x=-1
X=-1sur 3
4x-2=0
4x=2
X=2
Explications étape par étape