Question

Considere os polinômios P(x)= x^3-x, Q(x) =3x^4+6x^3-x^2+2x-4 e calcule:
a) [P (x)]^2
b) P (x)×Q (x)

Answer 1

a) [p(x)]^2=
(x^3 - x)^2 =
x^6 - x^2

b) p(x).q(x) =
(x^3-x).(3x^4+6x^3-x^2+2x-4)=
3x^7+18x^6-x^5+2x^4-4x^3-3x^5-6x^4+x^3-2x^2+4x=
3x^7+18x^6-4x^5-4x^4-3x^3-2x^2+4x