Differentiate the following functions with complete solutions

1. f(x) =- 2"(Constant rule) 2. y = x + 3x(Power rule, Sum rule) 3. f(x) = (2x + 1)(x - 1) + 2x (Product rule, Power rule, Sum rule) 4. f(x) = - 4+x 2x-3 (Quotient rule) 5. f(x) = (2x + x + 2) (Chain rule, Power rule, Sum rule)