= (x + 1) (x + 2) _5(x+2). b =-6(3x-2)-(3x-2)(x-4) c = (x + 1)(3-X) + (x +1) (2 +5x). D = (x-6) (2-x) - (2-x) (3 +4x) E = (2x + 1)² + (2x+1) (x+3) F=( 3x-4) (2-

Réponse :

Salut ,

(x + 1) (x + 2) -5(x+2)

(X+2)*(X+1-5)

(X+2)*(X-4)

b =-6(3x-2)-(3x-2)(x-4)

b=-(3X-2)*(6+X-4)

b=-(3X-2)x(2+X)

c = (x + 1)(3-X) + (x +1) (2 +5x)

c=(X+1)*(3-X+2+5X)

c=(X+1)*(5+4X)

D = (x-6) (2-x) - (2-x) (3 +4x)

D=(2-X)*(-3X-9)

D=(2-X)*(-3(X+3))

D=-3(2-X)*(X+3)

E = (2x + 1)² + (2x+1) (x+3)

E=(2X+1)*(2X+1+X+3)

E=(2X+1)*(3X+4)

F=( 3x-4) (2-x) - (3x-4)²

F=(3X-4)*(6-4X)

F=(3X-4)*2(3-2X)

F=2(3X-4)*(3-2X)

H = (2x+1)²- (x+3)(10x + 5)

H=4X²+4X+1-(10X²-25X-15)

H=4X²+4X+1-10X²+25X+15

H=-6X²+29X+16

Courage !

Explications étape par étape :