22 Factoriser les expressions suivantes.
A = 2a + 2b
B = 4c + 12
C = 2-6d
D = 5e² - 3e
E = 5x²-5
F=f-4f²
G= x³ - 3x²
H=9a² - 6a + 12
A = 2a + 2b
B = 4c + 12
C = 2-6d
D = 5e² - 3e
E = 5x²-5
F=f-4f²
G= x³ - 3x²
H=9a² - 6a + 12
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A = 2a + 2b
A = 2 (a + b)
B = 4c + 12
B = 4 (c+3)
C = 2-6d
C = 2 (1-3d)
D = 5e² - 3e
D = e (5e -3)
E = 5x²-5
E = 5 (x² -1)
F=f-4f²
F = f (1-4f)
G= x³ - 3x²
G = x² (x-3)
H=9a² - 6a + 12
H = 3 (3a² -2a +4)