Please answer the questions below asap

Questions:

Question 6 If f ( x) =_ (x4 - 3*# + 21)3 x then f'(x) equals O a) (x 4 - 3*2 + 2t) (4x3 - 312 In (3) (2x) + 2) x2 O b) x13(x4 - 3* + 2t) (4x3 - 3* In(3) (2x))] - (x4 - 3* + 21) (1) x2 O c) 3 (14 - 3* +21) (4x3 - 3* In (3) + 2) - 1 X O d) 3 (x4 - 31 - +21) (4x3 + 2) - 1 X O e) None of the above Question 7 If f (x) = elsin(x2);3 then f'(x) equals O a) f' (x) = e(sin(x )) 3(sin (x2))2 cos(x2) 2x O b) f' (x) = (sin(x2))3 O c) f' (x) = 3(sin (x2) ) 2 2x O d) f' ( x ) = elsin(x?)) (sin(x2) )-cos(x2 ) 2x O e) None of the above