4. (12 Points) 6 Given f (x) = (x - 3)2 (x - 5) x - a a. 2.5/8 o For what values of a, if any, does lim f(x) = co (not -co)? Explain clearly and completely. For all the values different to x as if we have hice ) or hex ) O where x = a the limit of at x-a would not exist. - when does this occur? b. 3.5/ 4 Determine for what values of a, if any, does lim f(x) equal a finite number? Explain your reasoning a-rat equals a finite number for LA a = 1 x-> at 8 -72199 3 the pan dinion