I have some notes here that will help you answer the problem on your own:
Working rules for finding particular terms:
Step 1:
Find the general term Tr+1 in the expansion of (a + b)n.
Step 2:
Assume that Tr+1 is the desired particular term.
Step 3:
Find the value of r.
Step 4:
Put the value of r in the term Tr+1. This gives the required particular term(s).
I hope my answer has come to your help. God bless and have a nice day ahead!
