Réponse :
C= 49x^2-4
D= 16+24x +9x^2
D=9x^2+24x+16
E=-(2x+6)^2
E=-(4x^2-24x+36)
E=-4x^2+24x-36
F=-(2x-10)(2x+10)
F= -(4x^2-100)
F=-4x^2+100
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Réponse :
C= 49x^2-4
D= 16+24x +9x^2
D=9x^2+24x+16
E=-(2x+6)^2
E=-(4x^2-24x+36)
E=-4x^2+24x-36
F=-(2x-10)(2x+10)
F= -(4x^2-100)
F=-4x^2+100