Factorise Fully

Question 1:

9m+54
9 m+6

Question 2:

42z60
6 7z10

Question 3:

63y+49
7 9y+7

Question 4:

3f22f
f 3f2

Question 5:

7ex+4x
x 7e+4

Question 6:

16v2+28cv
4v 4v+7c