Find the relative extrema, if any, for the function: f(x) = 3x4 - 6x+7. local min at x=0 and local max at x=-1 and x=1 local max at x = -1 and local min at x=0 and x=1 local max at x = 1 and local min at x = 0 local max at x=0 and local min at x=-1 and x = 1