Respuesta :

Hello from MrBillDoesMath!

Answer:

21

Discussion:

f(x) = 3x2 - 2x + 5

Substitute x = -2  in f(x) above to get

f(-2) =

3 (-2)^2 - 2(-2) + 5 =                  => (-2)^2 = (-2) * (-2) = +4, -2(-2) + + 4

3*4 + 4 + 5 =

12 + 4 + 5 =

21

Thank you,

MrB

aya3135
The answer is 21. hope this helps!