Answer :
hmmm
(x+y)^2=x^2+2xy+y^2
binnomial to the n power yeilds n+1 terms
(3x+5)^9 yields 9+1=10 terms
10 terms
(x+y)^2=x^2+2xy+y^2
binnomial to the n power yeilds n+1 terms
(3x+5)^9 yields 9+1=10 terms
10 terms