Exercice 1 : Développer puis réduire :
A = (5x – 3)(8x - 1)
B = (2x - 7)(2x + 7)
C = (6x -9)(6x +9)
D = (10x + 1)(10x - 1)
E = (x + 5)²
F = (3x – 8)²
G = (x + 8)2 + (x – 8)²
H = (2x - 1)2 - (2x - 1)(5x + 6)

Exercice 2 : vous pouvez m'aider svp je ny arrive pas et l'exercice 3 aussi svp merci ❤​
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