Find the nth term of the following sequences

Question 1:

4,16,36,64,100
4n2

Question 2:

1,4,9,16,25
n2

Question 3:

12,18,28,42,60
2n2+10

Question 4:

11,17,27,41,59
2n2+9

Question 5:

-4,5,18,35,56
2n2+3n−9

Question 6:

-5,0,9,22,39
2n2−n−6