Answer:
Step-by-step explanation:
[tex](3n+2)^{2} = (3n+2)(3n+2)[/tex]
[tex]9n^{2} +12n+4[/tex] - I expanded the above brackets
[tex]9n^{2} +12n+3+1[/tex] - I separated the 1 from 4 to make 3+1
[tex]3(3n^{2} +4n+1)+1[/tex] - I took out a factor of 3
= 1 more than a multiple of 3
