Calculate the derivative of the function f (x) = Squareroot 5x + x^2 f' (x) = h (x) = (3.1 x - 9)^2 - 1/(5.1x - 9)^2 h' (x) = f (x) = (b.4 x - 4)^2 + (4.3x - 1)^-2 f' (x) = f (x) = (x^2 - 3x)^-2 (3 - x^2)^0.5 f' (x) = s (x) = (3x - 3/2x + 8)^3 s' (x) = f (x) = [(4x - 1)^2 + (1 - x)^6]^2 f' (x) =