Question

Dada Função f R. /f(x)=x²-2×-1 calcule f(2)

Answer 1

A) F(2)= 2²-2.2-1=> 4-4-1=> -1 B) F(3)= 3²-2.3-1=>9-6-1=>2 C) F(-4)=-4²-2.-4-1=> 16+8-1=> 23