Question

Dados p(x)= -3x³ + x² + x – 2 e g(x)= x³ - x² + x – 1, determine: a) p(1) b) g(-1) c) p(1) - g(-1)

Answer 1

Resposta:

a)

p(x)= -3x³ + x² + x – 2

p(1)= -3.1³ + 1² + 1 – 2

p(1)= -3 + 1 + 1 – 2

p(1)= -3

b)

g(x)= x³ - x² + x – 1

g(-1)= -1³ - (-1)² + (-1) – 1

g(-1)= -1 - 1 + (-1) – 1

g(-1)= -4

c)

p(1) - g(-1) = -3 - -4

p(1) - g(-1) = -1