Respostas

2013-11-27T14:37:33-02:00
Sem baskara so somando e diminuindo:
-2²-5*(-2)+3=17
2013-11-27T14:40:24-02:00
F(-2) >>>  (-2) ² - 5.(-2) + 3
4 - (-10) + 3
4+10+3 >> 17 (A)