Réponse :

Explications étape par étape

■ bonsoir Anissa !

■ A(x) = (6x-4) (6x-4 -x-10) = 2(3x-2) (5x-14) .

■ B(x) = (3-2x) (3-2x +7x+3) = (3-2x) (5x+6) .

■ C(x) = (10-6x) (10-6x -8x+1) = 2(5-3x) (11-14x) .

■ D(x) = (-2x-9) (-2x-9 +3x+5) = (-2x-9) (x-4)

           = (2x+9) (4-x) .

■ E(x) = (9x+1) (9x+1 +10x+10) = (9x+1) (19x+11) .

■ F(x) = (-3x-6) (-3x-6 -6+8x) = 3(-x-2) (5x-12)

          = 3(x+2) (12-5x) .

■ G(x) = (7-10x) (7-10x -5+x) = (7-10x) (2-9x) .

■ H(x) = (5x-7) (5x-7 -1+6x) = (5x-7) (11x-8) .