Répondre :
Bonsoir,
A=6x - 3b
A = 3 * 2x - 3 * b
A = 3(2x - b)
B=a²-3a
B = a * a - 3 * a
B = a(a - 3)
C=2z + 4z²
C = 2z * 1 + 2z * 2z
C = 2z(1 + 2z)
D=4ax + 8x²- 48x
D = 4x * a + 4x * 2x - 4x * 12
D = 4x(a + 2x - 12)
A=6x - 3b
A = 3 * 2x - 3 * b
A = 3(2x - b)
B=a²-3a
B = a * a - 3 * a
B = a(a - 3)
C=2z + 4z²
C = 2z * 1 + 2z * 2z
C = 2z(1 + 2z)
D=4ax + 8x²- 48x
D = 4x * a + 4x * 2x - 4x * 12
D = 4x(a + 2x - 12)