Bonjour,
J = 49 - x²
J = - (x - 7) (x + 7)
K = 7 (4x + 1) - (2x + 9) (4x + 1)
K = - 2 (x + 1) (4x + 1)
L = 100x² - 150x + 25
L = 25 (4x² - 6x + 1)
M = 16x - 56y
M = 8 (2x - 7y)
N = 9a² + 24a + 16
N = (3a + 4)².
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Bonjour,
J = 49 - x²
J = - (x - 7) (x + 7)
K = 7 (4x + 1) - (2x + 9) (4x + 1)
K = - 2 (x + 1) (4x + 1)
L = 100x² - 150x + 25
L = 25 (4x² - 6x + 1)
M = 16x - 56y
M = 8 (2x - 7y)
N = 9a² + 24a + 16
N = (3a + 4)².