Find f(a ) such that f' (x) - 6x2 - 8x and f (1) = 3. Of(x) = 273 - 4x248 Of(a) = 273- 4x245 Of(x) = 213 - 4x2 43 Of(*) = 2x3 - 4x2 4 10 Of(x) = 2x3 - 4x2 +4