Question

divisão de polinomios exercicios resolvidos 8 ano? me ajudeeem por favor!

Answer 1

P(x) = –x4 + 3x3 – x2 – 4x + 1, para: a) x = 0 b) x = 1 c) x = –1 d) x = i e) x = –i

Resolução: a) P(0) = –0 + 0 – 0 – 0 + 1 = 1 b) P(1) = –1 + 3 – 1 – 4 + 1 = –2 c) P(–1) = –1 – 3 – 1 + 4 + 1 = 0 d) P(i) = –1 – 3i + 1 – 4i + 1 = 1 – 7i e) P(–i) = –1 + 3i + 1 + 4i + 1 = +1 + 7i