Question

considerando p (x) 2x^2+5x_2 e q(x)= - x^3+6x^2-1. Calcule:

A) p(x) + q(x)


B) q(x) - p (x)

Answer 1

Olá, tudo bem?

Sendo P(x) = 2x² + 5x — 2 e Q(x) = x³ + 6x² — 1.

a) P(x) + Q(x)

= (2x² + 5x — 2) + (x³ + 6x² — 1)

= 2x² + 5x — 2 + x³ + 6x² — 1

= x³ + 8x² + 5x — 3

b) Q(x) — P(x)

= (x³ + 6x² — 1) — (2x² + 5x — 2)

= x³ + 6x² — 1 — 2x² — 5x + 2

= x³ + 4x² — 5x + 1

Espero ter ajudado!