Answer:
[tex] \boxed{ f(x) = -2x^2 - 4x - 14 } [/tex]
Step-by-step explanation:
f(x) = -2(x+1)²-12
f(x) = -2(x²+2x+1) - 12
f(x) = -2x² - 4x - 2 - 12
f(x) = -2x² - 4x - 14
