Vamos calcular \( f(1) \) e \( f(2) \) para a função \( f(x) = x^3 - x^2 \). 1. Calcular \( f(1) \): \[ f(1) = 1^3 - 1^2 = 1 - 1 = 0 \] 2. Calcular \( f(2) \): \[ f(2) = 2^3 - 2^2 = 8 - 4 = 4 \] 3. Somar \( f(1) \) e \( f(2) \): \[ f(1) + f(2) = 0 + 4 = 4 \] Agora, analisando as alternativas: a. \( f(1) + f(2) = 1 \) b. \( f(1) + f(2) = 5 \) c. \( f(1) + f(2) = 6 \) d. \( f(1) + f(2) = 4 \) e. \( f(1) + f(2) = 7 \) A alternativa correta é: d. \( f(1) + f(2) = 4 \).