Respostas

2014-08-24T14:53:48-03:00
2014-08-24T14:54:34-03:00
F(5)= 2*5²+5-1
F(5)=2*25+5-1
F(5)=50+5-1
F(5)=55-1
F(5)=54

F(-3)= 2* (-3)²+3-1
F(-3)=2*9+3-1
F(-3)=18+3-1
F(-3)=21-1
F(-3)=20