Question

Sendo P(x) = x^3 + 2x^2 e Q(x) = x^4 - x^3 2x - 1 , calcule:

A) [P(x)]^2

B)P(x) × Q(x)

Answer 1

Resposta:

a) p(x)=x^+2x^2

=(x^3)²+2x^3.2x²+(2x²)²

=x^6+2x^5+2x^4

Explicação passo-a-passo:

b) (x^3+2x^2)(x^4-x^3)

=x^3.x^4-x^3.x^3+2x^2.x^4-2x^2.x^3

=x^7-x^6+2x^6-2x^5

=x^7+x^6-2x^5