Question

g (1) = ( 2f - 5f +1 )

Answer 1

g(1)= (2f - 5f + 1)
g(1)=(2.1 -5.1 + 1)
g(1)=(2 - 5 + 1)
g(1)= -3 + 1
g(1)=-2

Answer 2

fica assim:
$g(1)= (2f - 5f + 1)$
$g(1)=(2.1 -5.1 + 1)$
$g(1)=(2-5+1)$
$g(1)=-3+1$
$g(1)=-2$