aider moi a factoriser les expression dessus je vous en supplie aider moi

A = 2x(3x - 4) - x(2x - 7) + 4x
A = 6x² - 8x - 2x² + 7x + 4x
A = 4x² + 3x
A = x(4x + 3)

B = (x + 4)(2x - 3) - (3x - 1)(2x - 3) + (2x - 3)²
B = (2x - 3)[(2x - 3) - (3x - 1) + (2x - 3)]
B = (2x - 3)[2x - 3 - 3x + 1 + 2x - 3]
B = (2x - 3)(x - 5)

C = 2a³ - 3a² + a
C = ...

D = x² + 10x + 25
D = (x + 5)²

E = 4x² - 25
E = (2x + 5)(2x - 5)

F = x² - 7
F = ...

G = 4y³ - 12y² + 9y
G = 4y + (2y..

H = b³ - b
H = b(b² - 1)
H = ...

I = (4x + 7)² - 64
I = (4x + 7)² - 8²
I = ( (4x + 7) + 8) ( (4x + 7) - 8)
I = ( 4x + 7 + 8)(4x + 7 - 8)
I = (4x + 15)(4x - 1)

J = (a - 1)² - (2a + 3)²
J = ( (a - 1) + (2a + 3) )( (a - 1) - (2a + 3) )
J = (a - 1 + 2a + 3)(a - 1 - 2a - 3)
J = (3a + 2)(-a - 4)