Question

Please help with binomial expansion
find the 15th term of (a^2+d)^20

Answer 1

\(\dbinom{20}{14}(a^2)^6b^{14}\) probably easier to compute \(\dbinom{20}{6}\)

Answer 2

thanks for your help so far. to compute this do i compute 20!, divided by 6!?

Answer 3

or would it be 20!/6!(20!-6!)?

Answer 4

then i get .0014?