Find the point(s) at which the function f(x) = 7 - 2x equals its average value on the interval [0,6] The function equals its average value at x = (Use a comma to separate answers as needed.)Use the substitution u =6x-+ 5 to find the following indefinite integral. Check your answer by differentiation. - - 12x sin (6x2 + 5) dx - 12x sin (6x2 + 5) dx =