Bonjour,
Exo 17 :
I = - 8 ( x - 5 )
I = - 8 * x - 8 * ( - 5 )
I = - 8x + 40
J = 4 ( - x - 7 )
J = 4 * ( - x ) + 4 * ( - 7 )
J = - 4x - 28
K = - 7 ( - x + 7 )
K = - 7 * ( - x ) - 7 * 7
K = 7x - 49
L = - 9 ( - x - 3 )
L = - 9 * ( - x ) - 9 * ( - 3 )
L = 9x + 27
Exo 18 :
M = 7 ( 2z - 3 )
M = 7 * 2z + 7 * ( - 3 )
M = 14z - 21
N = 6 ( 4x - 9 )
N = 6 * 4x + 6 * ( - 9 )
N = 24x - 54
P = - 8 ( - 5 - 3y )
P = - 8 * ( - 5 ) - 8 * ( - 3y )
P = 40 + 24y
P = 24y + 40
Q = - 12 ( - 5 + 3z )
Q = - 12 * ( - 5 ) - 12 * 3z
Q = 60 - 36z
Q = - 36z + 60
Bonne journée.
J'espère t'avoir aidé(e).
