Respuesta :

Answer:

−519

Step-by-step explanation:

Use the given functions to set up and simplify f(−3).

Step-by-step explanation:

f(x)=7x-4x³-8x²+12

now keep (-3 )in place of x

f(3)=7(-3)-4(-3)³-8(-3)²+12

f(3)=7(81)-4(-27)-8(9)+12

f(3)=567+108−72+12

f(3)=619