last question plz

Let y = 314-21 423 -322 4x44 a) Given that In (y) can be written in the form In (2) # In ( A) 28 + In (B)x- + In (C) x+ In (D). What are the coefficients A , B , C' , and D ? A = m 3/64 C = 2401/9 D = 2401 W b) Using the correct answer to (a), and implicit differentiation, find the value of when a = 0