Répondre :
Bonsoir !
A = (5x-1)[(5x-1)-(2x+3)]
A = (5x-1)(5x-1-2x-3)
A = (5x-1)(3x-4)
A = (5x-1)[(5x-1)-(2x+3)]
A = (5x-1)(5x-1-2x-3)
A = (5x-1)(3x-4)
[tex](5x-1)^2-(5x-1)(2x+3)\\=(5x-1)[5x-1-(2x+3)]\\=(5x-1)(5x-1-2x-3)\\=(5x-1)(3x-4)[/tex]
En espérant t'avoir aidé.
En espérant t'avoir aidé.