Bonjour est ce que vous pouvez m’aidez ASSEZ RAPIDEMENT s’il vous plaît :

Exercice 3: Développer et réduire les expressions

A= -b(3b+7)+(5-b)b
B= -c(4+3c)-(9-2c+6c(au carrés) )
C= -5d+5d(d-2)-6(7-3d)

Exercice 4: Développer et réduire les expressions suivantes:

A = (x+3)(x+2)
B = (x+3)(2x + 4)
C=(x-7)(x + 9)
D=(x-3) (4-x)
M = (-y + 3)(8-y)
N = (2x - 3)(7-x)
O=(x+y)(2x-y)
P = (x-7)(2+ y)
E = (3x+4) (5x-7)
F=(-2x+8)(4-x)
G=(x + 1)(x+2)
H = (x + 4)(x + 3)
E = 5(a + 2)-(6a-7)
F = -b(3b + 7) + (5-b)b
G=-c(4+3c)-(9-2c +6c²)
H = -5d +5d(d-2)-6(7-3d)
I=(x - 5)(x+6)
J=(x-7)(x-2)
K = (2x+3)(3x + 1)
L=(2y-4)(3y + 3)
R=(x-1)(1-x)
S= (2x+3)(x+8)
T = (x+5)(x-2)
U = (a + b) (c-d)

Encore merci.
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