Question

Alguem terminina para min
F(x)=3x2-x+5
F(0)=3-02-0+5=
F(1)=3.12^-1+5=

G(x)=-2+9
G(-1)=-2.(-1)+9=

Answer 1

veja

$f(x)=3 x^{2} -x+5$

$f(0)=3(0)^2-0+5$

$f(0)=3.0-0+5$

$f(0)=0-0+5$

$f(0)=5$


$f(1)=3(1)^2-1+5$

$f(1)=3-1+5$

$f(1)=8-1$

$f(1)=7$


$g(x)=-2x+9$

$g(-1)=-2(-1)+9$

$g(-1)=2+9$

$g(-1)=11$