Respostas

2014-06-20T21:11:46-03:00
Para x = -2/3, 3x²-x-2 será:
f(-2/3) = 3(-2/3)
² - (-2/3) - 2 = 3(4/9) + 2/3 - 2 = 4/3 + 2/3 - 2
f(-2/3) = (4+2-6)/3 = 0
LETRA A
2 5 2