Respuesta :

   factoring:-

f  = 4x^2 + 19x - 5  =  (4x - 1)(x + 5)

g =  4x^2 - x  =  x(4x - 1)

(4x - 1) is common, so:-

f/g (x) =    (x + 5) /  x    which is the second choice.