Répondre :
A=(3x+2)(x-1)+(3x+2)(x^2-1)
A=(3x+2)(x-1)+(3x+2)(x-1)(x+1)
A=(3x+2)(x-1)(1+x+1)
A=(3x+2)(x-1)(x+2)
C=(x^2+3)+(3+x^2)x-(x^2+3)(x-1)
C=(x^2+3)(1+x-x+1)
C=2(x^2+3)
D=x^2-10
D=(x-V10)(x+V10)
A=(3x+2)(x-1)+(3x+2)(x-1)(x+1)
A=(3x+2)(x-1)(1+x+1)
A=(3x+2)(x-1)(x+2)
C=(x^2+3)+(3+x^2)x-(x^2+3)(x-1)
C=(x^2+3)(1+x-x+1)
C=2(x^2+3)
D=x^2-10
D=(x-V10)(x+V10)