D = (2x - 1) - (x + 5) E = 3x + 1 - (5x – 3)
F = 3x + 4 + (2x – 1)
G = (2x - 7) + (x - 3)
H = - (2x + 3) + (5x - 3)
| = - (x + 7) - (2x – 6)
J = 4 x (2a + 3) + 8
K= 9 (-5-2a) +18a
L = 12 x (b + 2) + 9 x (2b-1)
M = 4 (3b+8) - 6 (2b + 7)
N =2b (3b + 4) + 3b2
O = 8x (3x + 13) - 5x (7X+6)
S'il vous plaît je galère depuis 1h
F = 3x + 4 + (2x – 1)
G = (2x - 7) + (x - 3)
H = - (2x + 3) + (5x - 3)
| = - (x + 7) - (2x – 6)
J = 4 x (2a + 3) + 8
K= 9 (-5-2a) +18a
L = 12 x (b + 2) + 9 x (2b-1)
M = 4 (3b+8) - 6 (2b + 7)
N =2b (3b + 4) + 3b2
O = 8x (3x + 13) - 5x (7X+6)
S'il vous plaît je galère depuis 1h
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