Question

Dado o polinômio p (x)= 3x3 -2x2 + x - 2 o valor de p (-2) e igual a

Answer 1

p(x) = 3x +3 -2x +2 + x -2
p(-2) = 3(-2) + 3(-2) + 2 + (-2) -2
p(-2) = - 6 -6 + 2 - 2 - 2
p(-2) = - 12 + 2 - 4
p(-2) = - 16 + 2
p(-2) = - 14