SOLUTION: Find the indicated term in each of the following expansions. a) (2+x)^10,7th term b) (y-2x)^10,5th term

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Question 1185808: Find the indicated term in each of the following expansions.
a) (2+x)^10,7th term
b) (y-2x)^10,5th term
Answer by ikleyn(52748) About Me  (Show Source):
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Find the indicated term in each of the following expansions.
a) (2+x)^10,7th term
b) (y-2x)^10,5th term
~~~~~~~~~~~~~~~~~ 


(a)  7th term is  C%5B10%5D%5E6%2A2%5E%2810-6%29%2Ax%5E6 = 210%2A2%5E4%2Ax%5E6 = 3360x%5E6.



(b)  5th term is  C%5B10%5D%5E4%2Ay%5E%2810-4%29%2A%28-2x%29%5E4 = 210%2A2%5E4%2Ay%5E6%2Ax%5E4 = 3360x%5E4y%5E6.

Solved.

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    - Solved problems on binomial coefficients
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