Question

Dada a funçao F(x)=-x elevado ao quadrado +2x-1 calcule
A) F(0)=

B) F(-2)=

Answer 1

A) 0²+2.0-1
0+0-1= -1
resposta= -1

B) -(-2)²+2.(-2)-1
-4-4-1= -9
resposta= -9