In the expansion of (5x + 3y)n, each term has the form n _ k an kbk, where k
Chapter 9, Problem 45(choose chapter or problem)
In the expansion of (5x + 3y)n, each term has the form n _ k an kbk, where k successively takes on the value 0, 1, 2, ..., n. If n _ k = 7 _ 2 , what is the corresponding term?
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