Factorise Fully

Question 1:

10i+30
10 i+3

Question 2:

14c+6
2 7c+3

Question 3:

14u+18
2 7u+9

Question 4:

9p2+2p
p 9p+2

Question 5:

5fm+6f
f 5m+6

Question 6:

18n2+8np
2n 9n+4p