Please help! The places where there are an X means that I have a wrong answer but I don't understand why.

Find the derivative for the following functions: To make grading easier, please enter the derivative for each individual term in order it was given a)f(x) = 5log, x + 4x 7+ Vx 5 28 f'(x) = X + x In (4) 8 X X b)y = -7-21nc+ dy 20 X X c) g(x) = 52 + 7 . 37 + 72-2 14 g (@) = 15x2 +7(3(x) ) In(3) ~ d) y = 4e* + Vx- y'= 4pt + + 1 2vx