On considère A = ( 3x + 5) ( 2x -7 ) - ( -3x -5) ( 6x + 9 ) Calcule A pour x = -2 SVP Merci
BREVET
yupi62
Question
On considère A = ( 3x + 5) ( 2x -7 ) - ( -3x -5) ( 6x + 9 )
Calcule A pour x = -2
SVP
Merci
Calcule A pour x = -2
SVP
Merci
2 Réponse
-
1. Réponse loulakar
Bonjour
On considère A = ( 3x + 5) ( 2x -7 ) - ( -3x -5) ( 6x + 9 )
Calcule A pour x = -2
A = (3 * -2 + 5)(2 * -2 - 7) - (-3 * -2 - 5)(6 * -2 + 9)
A = (-6 + 5)(-4 - 7) - (6 - 5)(-12 + 9)
A = (-1) * (-11) - (-3)
A = 11 + 3
A = 14
-
2. Réponse yahaya15kone
Bonjour
On considère A = ( 3x + 5) ( 2x -7 ) - ( -3x -5) ( 6x + 9 )
Calcule A pour x = -2
A = (3 × (-2 )+ 5)(2 × (-2) - 7) - (-3 × ( -2) - 5)(6 × (-2) + 9)
A = (-6 + 5)(-4 - 7) - (6 - 5)(-12 + 9)
A = (-1) × (-11) - (-3)
A = 11 + 3
A = 14