Could you help me with my calc work

Evaluate How would you "remove the discontinuity" of f? In other words, how would you define f(4) so that fis continuous at 4? f(x) = x - 2x-B x-4 Note that f is not continuous at 4 because it is not defined there. In order to be continuous at 4, lim f(x) must equal ((4). X-4 First calculate lim ((x). Hint: The top of the rational function can be factored. X-4 lim f(x) = X -4Recall that a function fis continuous at a number a if the following holds. lim {(x) = f(a) We are given the following. Rx ) =CX if x