y = ((4^(2x-1))/(3-x))^3
dy/dx = 3((4^(2x - 1)/(3 - x))^2*d((4^(2x-1)/(3 - x)) =
d(4^(2x-1)*(3-x) - 4^(2x - 1)d(3 - x)
3((4^(2x - 1)/(3 - x))^2 * --------------------------------------------- =
(3 - x)^2
4^(2x-1)ln4 *2 *(3-x) - 4^(2x-1)(-1)
3((4^(2x - 1)/(3 - x))^2 * --------------------------------------------- =
(3-x)^2
4^(2X-1)[2(3-X)ln4 + 1]
3((4^(2x - 1)/(3 - x))^2 * ---------------------------------------------- =
(3-x)^2
3((4^[(2x-1)^)2 * 4^(2X-1)[2(3-X)ln4 + 1]
------------------------------------------------------- =
(3 - x))^2 * (3-x)^2
3((4^[(2x-1)^)^3[2(3-X)ln4 + 1 ]
--------------------------------------------------
(3 - x))^4