Respuesta :

Answer:

-27

Step-by-step explanation:

f(x) = -x^2 + 6x

Let x = -3

f(-3) = -(-3)^2 + 6(-3)

      = -9 - 18

         -27

Answer:

f(3)= -9

Step-by-step explanation:

F(x)=-x2+6x

f(3)=--3^2+6.-3

f(3)=9+-18

f(3)=-9