For some reason the cropping on the app (what I'm on) isn't working very well. It's cropping the bottom portion of this question. The rest of the questions asks you to find, "b = ? (enter a number)f(u) = ? (Enter a function of u)The value of the original integral is ?" Please, please, please answer those parts as well. Thank you so much in advance!!

Using the method of u-substitution, 4 6 (4x - 5)' dx = f(u) du 3 a where U = enter a function of x) du = dx (enter a function of a) a = (enter a number)