Bonjour je suis en 4eme vous pouvez m'aider svp Développer et réduire les expessions suivantes :
A = 9x (-2x - 10)
B = (7x + 2) x 7x
C = 4 (-5x - 3)
D = (-10x + 5) x 4
E = (10x - 9) x7
F = (x - 10) x (-z)
G = -8 (-10-7)
H = -7x (-5x - 10)
I = (-3x - 7) x 2
J = 8 (10x + 8)
K = (-x - 7) x 10
L = -5x (6x -7)
M = -9(10x +3)
N = 4x (7x + 9)
O = (-7x + 2) x (-10x)
P = (-2x + 6) x 9z
A = 9x (-2x - 10)
B = (7x + 2) x 7x
C = 4 (-5x - 3)
D = (-10x + 5) x 4
E = (10x - 9) x7
F = (x - 10) x (-z)
G = -8 (-10-7)
H = -7x (-5x - 10)
I = (-3x - 7) x 2
J = 8 (10x + 8)
K = (-x - 7) x 10
L = -5x (6x -7)
M = -9(10x +3)
N = 4x (7x + 9)
O = (-7x + 2) x (-10x)
P = (-2x + 6) x 9z
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