bonjour pour demain aidez moi svp
a) 3( x+6) =
b) 5(6-y) =
c) -7(2 z -3) =
d) -8(-5-3 y) =
e) 6 ( 4x - 9) =
f) -12(-5+3x) =
a) 3( x+6) =3x+18
b) 5(6-y) =-5y+30
c) -7(2 z -3) =-14z+21
d) -8(-5-3 y) =24y+40
e) 6 ( 4x - 9) = 24x-54
f) -12(-5+3x) = -36x+60
Il suffit d'appliquer la simple distributivité.
A = 3(x + 6)
A = 3x + 18
B = 5(6 - y)
B = 30 - 5y
B = -5y + 30
C = -7(2z - 3)
C = -14z + 21
D = -8(-5 - 3y)
D = 40 + 24y
D = 24y + 40
E = 6(4x - 9)
E = 24x - 54
F = -12(-5 + 3x)
F = 60 - 36x
F = -36x + 60
