Question

Se A(x) = x2 – x + 1, B(x) = (x – 2)2 e C(x) = -3x, calcule [A(x) + B(x).C(x)].

Answer 1

Vamos là.

A(x) = x² - x + 1

B(x) = (x - 2)²

C(x) = -3x

B(x)*C(x) = -3*(x - 2)² = -3x²+ 12x - 12

A(x) + B(x)*C(x) = x² - x + 1 - 3x² + 12x - 12 = -2x² + 11x - 11