pourriez vous résoudre ces expressions svpppp? j’y arrive pas.

Bonjour,

A = (4x - 1) (5x - 3) - (4x - 1)²

A = [(5x - 3) - (4x - 1)] (4x - 1)

A = (5x - 3 - 4x + 1) (4x - 1)

A = (x - 2) (4x - 1)

B = (2x + 5)² - (2x + 5) (x - 3)

B = (2x + 5) (- x + 3 + 2x + 5)

B = (2x + 5) (x + 8)

C = 4x² - 81 + (x - 3) (2x - 9)

C = 4x² - 9² + (x - 3) (2x - 9)

C = (3x + 6) (2x - 9)

D = (3x - 2) (x + 5) - (x² - 25)

D = (x + 5) (3x - 2 - x + 5)

D = (x + 5) (2x + 3)

E = (2x + 3)² - (x - 4)²

E = (2x + 3 - x + 4) (2x + 3 + x - 4)

E = (x + 7) (3x - 1)

F = (2x - 1)² - (2x - 1)

F = (2x - 1 - 1) (2x - 1)

F = (2x - 2) (2x - 1)