Find the first 5 terms of the following sequences

Question 1:

3n2
3,12,27,48,75

Question 2:

n2
1,4,9,16,25

Question 3:

2n2−7
-5,1,11,25,43

Question 4:

4n2+2
6,18,38,66,102

Question 5:

n2+3n−1
3,9,17,27,39

Question 6:

2n2−4n−3
-5,-3,3,13,27