Please help me solve.

For the following exercises, use the definition of a derivative to find f' (x). 3.2 55. f(x) = 2 - 3x 60. f(x) = Vx -6 3.3 For the following exercises, find f'(x) for each function. 107. f(x) = 5x -x + 1 112. f(x) = (x + 2)(2x2-3) 116. f(x) = x2 +4 X2-4 {