A(x)=9x^3-x^2 B(x)=3x+1. Calculati : {E(x)} la puterea a 3 unde E(x)=A(x)-(3x^2)×B(x)

Răspuns :

E(x)=9x^3-x^2-(3x^2)×(3x+1)
E(x)=9x^3-x^2-9x^3-3x^2
E(x)= -4x^2
{E(x)}^3=(-4x^2)^3= (-64x^6)