SOLUTION: find the 11th term of (b-3)^12

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Question 455715: find the 11th term of (b-3)^12
Answer by Edwin McCravy(20055) About Me  (Show Source):
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The formula for the kth term of 
 
(U + V)N 
 
is

C(N,k-1)UN-k+1Vk-1


Therefore to find the the 11th term of (b-3)12,

we substitute b for U, -3 for V, 12 for N and 11 for k

and then

C(N,k-1)UN-k+1Vk-1

becomes

C(12,11-1)b12-11+1(-3)11-1

C(12,10)b2(-3)10

66b2(59049)

3897234b2

Edwin