Respuesta :

Answer:

f(x) = 3x² - 24x + 53

Step-by-step explanation:

Given

f(x) = 3(x - 4)² + 5 ← expand the factor using FOIL

     = 3(x² - 8x + 16) + 5 ← distribute by 3 and simplify

     = 3x² - 24x + 48 + 5

     = 3x² - 24x + 53 ← in standard form