EMMABERGE28 EMMABERGE28 Mathématiques Answered + Exercice 1 : Factorise les expressions suivantes : A= 3(x + 3) + x(x + 3) B = x2-9 C= 4x2 - 10x + 25 D= (2x + 7) (x - 2) + (2x + 7) (3x + 4) E= (x - 2)( 4x - 1) + (x - 2)(x + 3) F =(4 - x)(2x + 1) - (2x + 1)2 G=25x2 - 36 H= 16x2 - 8x +1 I = 25 - (x + 1)2 J= (x + 1) (x - 2) - 3x(x + 1) K = 4 - 4x2 L = (3x+5)2 - (x-2)