Question

Evaluar la función f(x) =3x²+2x-6
X = -3

Answer 1

f(x) = (3*-3*-3) +(2*-3) -6
f(x) = 27 -6 -6
f(x) = 27-12
f(x) = 15

Answer 2

mira es facil, solo remplazas
3(-3)²+2(-3)-6
3(9)+(-6)-6
27-6-6
27-12
15