Use pascal's triangle to expand the binomial.
(s+3v)^5

a. s^5 - 5s^4 + 10s^3v^2+5sv^4 - v^5
b. s^5 + 15s^4v +90s^3v^2 + 270s^2v^3 + 405sv^4 + 243v^5
c. s^5 + 45s^4v+270s^3v^2+810s^2v^3+1,215sv^ 4 + 729v^5
d. s^5 + 15s^4 + 90s^3 + 270s^2 + 405s + 243