Bonjour, merci de votre aide ; Factoriser :
I = (2x - 3)² + (2 x - 3)(x + 5)
J = x² - x (2 x - 3)
K = 4 x² - 121
L = (x + 2)² - 25
M = 9 x² - 6x + 1
I = (2x - 3)² + (2 x - 3)(x + 5)
J = x² - x (2 x - 3)
K = 4 x² - 121
L = (x + 2)² - 25
M = 9 x² - 6x + 1
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