In Exercises 21 through 38, differentiate the given function and simplify your answer. 21. f(x) = (2x + 3)4 22. f(x) 5 - 3x 24. f(x) = 5x - 12 23. f(x) = (2x + 1) 25. f(x) = (x - 4x - 7) 26. f(t) = (3-71 + 9) 27. f(1) = 29. g(x) = 1 5 - 6r+ 2 31. f(x) = 4x+1 3 (1-x)4 33. h(s) = (1 + 3s) 35. f(x) = (x + 2)(2x - 1) 36. f(x) = 2(3x + 1)^(5x - 3) (x + 1) 37. f(x) = 38. f(x) = 28. f(x)= (1-x)* 1-5r 3 + 2x 30. f(s) = 32. f(x)= 2 (6x + 5x + 1) 34. g(x) = 55 +2 2 3(5x +1) 3x