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a fost răspuns

a) E(x)=(x-2)(9-x^2)
b) E(x)=(x^2-25)(3x+2)
c) E(x)=3x^2-6x / x^2-1
d) E(x)=2-5x / x^2-4 -1

Răspuns :

a) E (x)=-x^3+2x^2+9x-18
b) =3 x^3+2x^2-75x-50
c) =3x (x-2)/(x^2-1)
d) =2-5x/x^2-5

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