Question

Dado os polinômios A(x) = x³ - x² + x - 1  eB(x) = -3x² + x + 2, calculea) A(1/2) - B (-1) b) A(0) + B(1)

Answer 1

A)
a (1/2) = (1/2)^3 - (1/2)^2 +1/2 - 1
a (1/2) = 1/8 - 1/4 + 1/2
a (1/2) = 3/8
b (-1) = -3 × (-1)^2 + (-1) +2
b (-1) = -3 × 1 + 1
b (-1) = -2

---> 19/8

B)
a (0)= 0^3 -0^2 + 0 -1
a(0)=-1
b (1)= -3 × 1^2 + 1 + 2
b (1)= -3 +3
b (1)=0

---> -1