Find the first 5 terms of the following sequences

Question 1:

3n2
3,12,27,48,75

Question 2:

2n2
2,8,18,32,50

Question 3:

4n210
-6,6,26,54,90

Question 4:

3n27
-4,5,20,41,68

Question 5:

2n25n4
-7,-6,-1,8,21

Question 6:

n2+4n2
3,10,19,30,43