Answer:
f(x)=-2x^2+32x-114
Step-by-step explanation:
f(x) = -2x^2 + 142
f(x) = -2(x - 8)^2 + 14
f(x) = -2(x)^2 - (-2)(-8)^2 + 14
f(x) = -2x^2 - (-2)(64) + 14
f(x) = -2x^2 - (-128) + 14
f(x) = -2x^2 + 128 + 14
