bjr
D = (x - 1) (3x + 1/3 + 1/4x + 2)
D = (x - 1 ) (13/4x + 7/3)
E = (2x + 3) (x -1 - 2(2x+3))
E = (2x + 3) (x - 1 - 4x - 6)
E = (2x + 3) (-3x - 7)
F = (2x)² - (1/6)² = (2x + 1/6) (2x - 1/6)
et
G(x) = 4x² - 8x + 4 = (2x - 2)²
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bjr
D = (x - 1) (3x + 1/3 + 1/4x + 2)
D = (x - 1 ) (13/4x + 7/3)
E = (2x + 3) (x -1 - 2(2x+3))
E = (2x + 3) (x - 1 - 4x - 6)
E = (2x + 3) (-3x - 7)
F = (2x)² - (1/6)² = (2x + 1/6) (2x - 1/6)
et
G(x) = 4x² - 8x + 4 = (2x - 2)²